I wish you well for whatever remains of recovering from the illness, it sounds like you've had a rough time.
It's a term from gaming which, in the broadest sense, means how they paint the sky to make it look authentic. Imagine being inside a cardboard box - the sides are painted to look like rolling mountains and hills, and the top face is painted to look like a cloudy sky, and if it's done well, all of these should connect up and give the impression that you're lookint at a real sky.
I don't think you're necessarily missing anything. Lower Decks is probably my favourite Star Trek series by a decent margin, but I think that people's varying tastes is part of the Trek experience.
Like the first Star Trek I ever watched was TNG, with a partner who hated DS9 because of how far it was from the much more utopian tone of TNG. My best friend, however, loved DS9 most of all for that exact same reason. I can't tolerate The Original Series because of how campy and cringe it is, but I have friends who love it for that.
If you hate Lower Decks, then your perspective is one I can't really relate to, but that just feels like regular old Trekkie solidarity to me - with a show so varied, inevitably there's going to be diverse viewpoints. That in mind, I'm not going to try and change mind, I'm just going to highlight why I love Lower Decks.
My favourite bit about Lower Decks is that it feels like a love letter to Trek, in all its forms. There's a lot of references I don't get, but I don't need to get them to feel the warm fuzzies of knowing this show was made by people who are, first and foremost, fans of Star Trek. I like utopian sci fi because the state of the real world means that I can find real hope in the fantasy because in my heart, I believe in humanity.
Alongside all of that idealistic space exploration though, Lower Decks doesn't shy away from the more pernicious aspects of Star Trek, and Starfleet/the Federation. The humour isn't always my taste, but I think they use it well to poke fun at Star Trek, the show, but also the world within. The sometimes critical lens that is taken is part of why it feels so much like a love letter to Trek - if you truly love something, you've got to take the bad with the good and not pretend that everything is perfect.
To be fair, in many cases, the observable behaviour of things is different at scale. A single water molecule has different properties to a cup of water, in much the same way that a high density crowd of people (greater than 4 people per square meter) starts to behave as a fluid.
I study biochemistry and I'll never stop finding it neat how when you get down to the teensy tiny level, all the rules change. That's basically what quantum physics is, a different ruleset which is always "true", so to speak, but it's only relevant when you're at the nano scale
I suppose what I'm saying is that I agree with you, that fathoming scope is difficult, but I'm suggesting that this is a property of the world inherently getting being a bit fucky at different scales, rather than a problem with human perception.
I don't feel especially well poised to give advice here, because I'm still struggling with this, but maybe that's the point; increasingly, I think that my idea of what "coping well" means is false and unattainable, and that real progress involves a bit of self acceptance.
On that front, my advice would be that living with ADHD means learning what battles are worth fighting, and only you can figure out.
A friend of mine used to struggle with extended chunks of work of one kind, and she spent a long while trying to force herself to work with timers and stuff, but her actual productivity shot up when she gave herself a bunch of tasks to cycle between. She enjoyed breaking up work with household tasks like washing the pots, because it's simple, and has a defined end. Amusingly, sometimes she'd work at my place when we were students, and she'd tidy up for me and later say thank you for the opportunity.
One of my issues was I kept expecting myself to remember stuff when my short term memory is trash, even by ADHD standards. I got better at training myself to write stuff down, including sometimes asking for a break in the conversation to give me a chance to write it down so I don't forget. That was awkward at first, but it got easier, and most people were understanding - most people seemed to respond positively in fact, because it shows that you care about what's being discussed (certainly more positive than if I'd forgotten and incorrectly given them the impression that I didn't care)
I spent a long time trying out different apps and systems, because novelty seeking brain wanted a silver bullet to solve all the things. Sometimes I still fall into that trap, but nowadays I know that even the best todolist or calendar app in the world won't help if I don't use it. It's a me problem, and integration problem. Part of what helped me there was actually evaluating where my various systems kept going wrong. Like instead of calling myself lazy for not keeping things tidier, I made actual progress by buying a bunch of bins so that there's always one at hand. I stopped berating myself so much. Beating yourself up for not being able to do things is internalised ableism.
Medication helps a lot, but I found that there were a bunch of maladaptive coping measures I'd built up over the years that I had to unlearn once I had medication. And then when I had a period without medication, I found myself struggling more than ever. It's a combo approach, is what I'm saying. Don't expect yourself to function at the same level as you would if you were medicated.
What you describe reminds me a lot of 
about how untreated ADHD traps you on depression.
As someone with chronic pain, this is actually pretty good
Because killing yourself would also hurt people, likely way more than your life ever could. I've struggled with something similar myself, and my conclusion was that if I truly felt bad for hurting people, the only moral answer is to try and do better and improve.
Often I would resent having people who cared about me, because it would be so much simpler if there were no-one who'd miss me, or be hurt by my death, but it's too late for that because I have a bunch of wonderful people in my life who care about me, even if I don't understand why. Sometimes I wish I'd never met them, because that would make things simpler.
A few times, I've had the idea that a compromise is to withdraw from these relationships and sort of wean them off of me. There's a word that captures this approach, decathect: "to withdraw one's feelings of attachment from (a person, idea, or object), as in anticipation of a future loss." The logic of this approach was that if I can't be a good person who deserves the love of the people I love, I could at least reduce their exposure to someone shitty like me.
It didn't work out, because as I withdrew, living became more untenable and caused me to inadvertently hurt more people. It was the worst of all worlds - I wasn't really living, but it was still hurting people similar to if I'd just died.
Quarantine doesn't solve this and neither does suicide. Especially not suicide, which is often a selfish craving in situations like this. I don't say that in a judgemental way, just straight up, suicide is the simpler option for people like us. It appears deceptively like justice, and there's a nice closure to it. I don't think it's unreasonable to consider selfish options when you're struggling with life, but it isn't solace or closure or justice or any of those things we wish it was. If it were so simple, you'd probably be dead already.
It sucks, and I'm sorry, but there is nothing that can undo the harms of the past. Sometimes putting in the work to do and be better can lead to some healing, but also sometimes bridges get burned and you're trying to be better for the sake of people you've yet to meet. If you do truly believe yourself deserving of something so drastic as suicide, then surely the better "punishment" is to continue living through and past the consequences of your actions. Redemption exists in the better world that you stand to be a part of building, by being one more person trying to be better.
Unfortunately, it is as simple as just "do better in the future", which is frustrating, but makes sense to me - if suicide is a not simple, but easy solution to the problem of harms caused, then redeeming yourself through life is simple, but fucking difficult.
I don't know if it's worth it. Sometimes I find myself thinking "I should have killed myself two years ago, and this wouldn't have happened" when I fuck something up, and then suicide now is tempting in a "the best time to plant a tree was 20 years ago, the second best time is now" kind of way, even though that's twisting the analogy to hell. The world will not be made better by your absence - if you have any sense of duty to the world or your loved ones, then it's necessary to live with the weight of your past mistakes and move past them. Dying just puts that burden with everyone else, condemns them to a life of wondering "what if I had done Xyz differently.
For what it's worth (very little, I'm a random internet stranger who has no knowledge of you or your circumstances), I would rather be friends with someone who has hurt me, but knows they're fucked up and making genuine, continuous attempts to improve than someone who is completely apathetic and hasn't hurt me particularly, but by fluke only. I think that our actions matter much more than our (stated) intentions (especially in situations where there's a pattern to behaviour - I have unfortunately lost a few friends in this way), but I do think the intention counts for something. The fact you feel bad about what you've done means something. The challenging bit is to prove it. It's not easy, and it might not even be possible to do such high levels of self improvement, idk even in my own case. I do know that it's always worthwhile to try.
If life were a game where you lose if your net impact on the world is negative, then it's not game over yet. If you die, that's it, you get taken by the score screen and you'd probably not be too happy with what you'd see there. And yeah, it's possible that you could decide against suicide and live a long life and die of old age, and still lose the game, if the net impact comes out to be not great still, but as long as you're alive to read or think about these words, there's still hope of making it through and levelling up enough that you can rack up the positive impact points. Hurt and help don't cancel out like points in a video game do, but it's hard to not think of "net impact" when contemplating dying in this manner. This might not vibe with you, but for me, it was and still is insanely motivating to know that there is still a non-zero chance of me winning this game, and what's more, the possibility of winning is exclusive to paths where I continue living (even if often, I would rather be dead), and trying to be better (even if often, it feels like it'd be better for others if I were dead). Suicide offers control, the ability to decide how you lose the game, but it will always be a loss.
Whatever your struggles or your circumstances, I wish you the strength to steer into calmer territory, and the wisdom to recognise change. It feels weird to give advice when this is very much something I still struggle with, but this is me trying to be better. I might not feel especially hopeful about my own journey, but I do believe what I've said here, that meaningful change is always possible
Finally, something that isn't vetoed
^ what are they gonna do, randomly punch you in the face in front of a crowd of people?
They might do. They might also:
"I bet the person would walk away willingly"
A reasonable person would, but the danger here is that the prevalence of unreasonable people who would respond poorly to being rejected is high enough that it is necessary for women to build systems like this to keep each other safe. You're right, that this system is to compensate for a lack of social skills, but it's compensating on behalf of petulant men who refuse to take no for an answer.
If this sounds absurd to you, congratulations, you're probably a reasonable person who would respond rationally to being rejected, but most women I know have had bad experiences like this. If your instinct is that this sounds like an unreasonable amount of effort to go to to avoid confrontation, consider what level of conflict has led to the formation of these practices - they don't just come from nowhere
It's a bit absurd.
Let's imagine OP was trying to scam the company. The sheer gall of asking for approval on a scam would be so audacious that honestly, it wouldn't be safe to have an employee like that working on anything of value. The level of "fuck you, I don't care" that it would show would mean that the safest thing to do with an employee like that would be to fire them.
The guy didn't ask the basic question of "has OP given us any reason not to trust them?" If the answer to that was "yes", then maybe flying them out to the UK to act on the company's behalf isn't a great idea. And if that doesn't seem likely, then it's probably an employee trying to help and they should be encouraged
Ah, gravity, my arch nemesis (I have a disability that makes me fall over a lot. I also have boobs)