Might make you feel better, I'm almost 30 and all I can say about myself is: oh no
...because I've only had an unpaid internship at a car dealership (many years ago).
I think the only hope I'd have is if I could find somewhere better to live without money (such as an intentional community) but even if what little I can regularly do now were acceptable/desired enough to get room and board, because of health (body and brain) I don't know if I could even be reliable enough for that. I feel like I'd need to mesh well with the community too, and as an oddball shut-in even pre-2020 I don't have high hope for that. Plus I don't expect to find all this within biking distance (I'm in a somewhat rural area (USA)).
I don't (think I) have ADHD though, instead SchizoidPD/depression (but who knows w/brains though, eh?)... though I'm in a similar spot with hobbies (and never did enough personal projects to get actual skill/anything to show).