I started college when I was 20 (turned 21 in first year) and now even I forget that I'm older than most of my friends! Do not listen to the idiots telling you that you won't be able to stick it if you are studying something you care about it won't make any difference. I'm in my final year now and while I'm definitely ready to finish, I do not regret going for a second. Nobody would have believed I'd have 'stuck it out' either considering my track record but I've actually done fucking great so shows how much they knew.

In the end of the day only you get to decide what you can and can't stick, but if you want to talk more about it my DMs are open.