first of all, the irony in this comment is incredible. Second of all, literally just start buying used shit first and foremost (it's already out there, using it is better for the environment) and if you do buy something new, try and buy something that you know you can get a good lifetime out of.

have a proper sit down, and think about what you really need to keep going in life. Focus on that. I'm not saying you should drop every hobby you've ever had, but if you collect newly released shit, maybe pivot into finding older stuff that's interesting to collect. If one of your hobbies has a consumable material/s maybe think about how you can better fill that gap. Perhaps try a different hobby every once in a while.

I've always enjoyed computer hardware, i recently got my hands on a few older thinkpad models. x20 series and an x50 series. Both used, both seen some shit in their day and age. Gave me a handful of usable laptops, most of the parts i bought for them were used. All of them are fantastic machines though.