>>22400465Try to remind yourself that they're just normal entertainers and that they're as tangible and attainable (for us, realistically speaking) as 2D anime girls. I think that helps with the jealousy, just be glad that they exist at all.
As for being reminded about your own shortcomings, I wish I knew. Nothing short of working on your confidence will help.
>I doubt I can ever stop being a NEET (as much as I hate myself for it), but I'd at least like to manage my feelings responsibly so I can continue enjoying this medium.Please don't give up on yourself. Have you considered developing a skill like coding, translating or drawing? Doing this kind of thing will boost your confidence, even if just a little. Maybe you'll even manage to earn money while doing it.