^C'mon. That's not true.
Let me tell you (beer talking now), when I was at college I had a woman, a cat, utilities and rent to pay for. This meant working. I didn't stay in dorms because I had a place of my own that was better.
I studied engineering which meant hangout in a workshop half of the week with a bunch of monkeys hitting each other with files. I kept to myself and found some mature students to socialise with (drink, party, talk about cars, borrow money from) and ignored the buffoons.
I worked to pay my way through college which meant less sleep than I'd have liked but I did it and that's that.
I had some fun times, did some cool stuff and had some new experiences. Made a few friends, drank a few beers and went wit the flow.
Potential problems you'll face: Finances in a muddle, hunger, hangovers, finding the right 'group' of friends, finding yourself (I was 20 at the time so wasn't bothered about finding myself, just the nearest bar), regulating your time between study, work and leisure, if you have to work, that is.
There are some other things I can report but they can wait until another time.
All in all, just go with the flow, enjoy yourself and don't take life too seriously or it'll kick you in the nuts.
Good luck.