I guess I would be considered NEET. I was diagnosed with depression and CFS and dropped out of college a few years ago. Now I live off of a monthly stipend from my parents. I have a little apartment, no car, no job, no real-life friends, and probably no future.
I feel like I'm disappointing the world, but it's hard to do anything when your body might not let you. Like I haven't been able to follow a regular sleep schedule in years. I usually sleep for 12-14 hours at a time, but I can never predict how long I'll stay awake. Sometimes it's 2 hours, sometimes it's 20. That's why I'm no longer in college. I kept sleeping through classes and exams (I'd ignore my alarms or turn them off in my sleep).
I only leave my apartment two or three times a month. There's a Walmart and a supermarket right behind my apartment, and since both are open 24 hours I get all my groceries and supplies late at night when no one else is around. Other than that, I'm always inside with my curtains drawn. I used to watch TV a lot, but now that my computer's fixed I'm back to spending time online.
I feel like in a couple years I'll hit a point where I'll never be able to be a 'normal' human being again, even if all my physical/mental issues magically disappear.