Also if you just want the audio to listen to (I like to do this with TTRPGs) you can do:

yt-dlp -x -f bestaudio

Also works great in a pinch for getting sounds and music for FoundryVTT.

I don’t have any revolutionary advice to give to you my friend. I’m quite a bit younger than you and I already am feeling the creep of losing touch with the speed of new technology. I think to a certain extent that is inevitable. I will say that there is a tremendous amount of survivorship bias in the videos of young people making racks off of day trading. These videos are designed to get people hooked on what is functionally gambling. No offense meant whatsoever, but if you’re living paycheck to paycheck it’s the exact type of slippery slope that can turn a bad financial situation into a ruinous one. I hope you find something that you like though and wish you the best of luck in whatever you do!