Is there any class in school you’ve done that’s been sustainable for you? If you feel like coding/art is more like a hobby and you don’t want to be stuck doing it forever, maybe there’s something else out there for you that you’d feel content working on a little every day.
If you’re worried about coding as a job from competitiveness though, I think don’t worry too much about it. It’ll work out if you just try your best. Even you doing coding for fun is pretty cool :o