but im probably dreaming too big
No you're not. You underestimate yourself. There is not "too big" when it comes to having a hobby. You don't need to prove anything, just do something you enjoy and that makes you feel good about yourself. The difficult part is getting out of the house, not the actual activity. I won't recommend anything specific here because lots of people in this thread have already, and also the activity does not really matter, only that you do something that engages you.