I was under the impression that psychedelics can lead to ego death so an inflated ego seems strange.

There are several schools of thought on the ego, one of the more prominent ones being the conquering or killing of the ego. I personally found a lot more clarity in understanding and accepting the ego, seeing it as a part of my mental and emotional landscape that focuses on meeting my basic needs. I definitely agree however that it can be aggressive and loud, drowning out higher order of thought and interfering with oneness mentality.

It sounds like your ego is trying to communicate something, like an unhappiness or discontent with your present situation. If you're in a good spot to do so, I advise listening to what it has to say even if it is very uncomfortable and sobering and unsettling. Make a list too if it helps. I've done this and as wildly uncomfortable and downright depressing it can get, it can also offer unparalleled clarity into what needs are not being met. And we humans are no strangers to neglect.

Above all else, trust your gut. And throw away any and all parts of this advice/feedback as needed. It's the advice I wish I had when I was in a similar situation

Check out Santo Daime. When group behavior is the reference point, your conscious choice to harmonize with the group can help relieve varieties of self-centeredness including feeling entitled, lack of connection, and internal conflict. If your experience of psychedelics is only individual exploration then you have not had a chance to appreciate their full transformative potential.

There are a couple things in your post that gives me pause. It sounds like you’re having a pretty tough time with how you feel about yourself. You say you recognize that it’s probably good to have the sobering effects but are still seeking use without that constraint.

Like mentioned by someone else, it may be a good idea to look at what the trip is telling you.

You might consider that working on why it is you feel that way could be the best way to remove it from your experience.

I think it’s entirely likely to become more introspective about your behavior on a trip. You might consider what “egotistical” even means and if the traits you see in yourself are worth changing. Thinking of one’s self positively is not inherently wrong.

To really change the feeling, you will have to change your life. Integrate what you learn into your daily life. Start small, you can’t change everything at once.

There are also things you can’t change, those you can learn to accept with time.

There’s also the alternative to suppress any bad feelings with benzodiazepines. They will dull your trip somewhat, but relief anxiety and discomfort.

it weren’t for the fact that ayahuasca tastes so fucking terrible and causes me to puke my guts out literally every single time,

Try pharmahuasca or pure extracted harmaline with pure extracted DMT instead of a jungle plant concoction. Psilocybin mushrooms and LSD are other alternatives.