Hi Justin, fellow INTJ, lol. I really identify with what you're going through. I'm also 21, took years off after high school because I had to deal with family crises. It is so hard to be this age and not know what you're doing or where you're going. My best advice is to just take what classes interest you, and make good use of campus resources. If you have taken classes you enjoy, talk to the teachers about your struggle, I've found them to be very willing to try to point you towards other classes or a field that might fit you well. If your school has an advising center, talk to an advisor, or even maybe the campus counseling center if your school has one, like mine does, often they will have staff on hand to help with career counseling. Good luck! Realize you're not the only one in this situation.