if you know a lot of dudes, get a house. preferably crappy. get like 7 room mates, have a blast. After one year, you might hate it, but it wont be extremely expensive. if you hate it, find something that works. if you love it, re-up and scrape together money for another kegger.
if you dont know that many people, get a dorm spot. its not a big deal how old you are, and its much easier to meet people because everyone is in your same situation. I met a bunch of people in the dorms, guys and girls alike.
I had a blast living in the dorms for a year. then I spent a year in a slum with 6 roomies, then upgraded to a side by side condo, one room mate on my side, and we were great friends with the two guys on the other. Its exactly how I would do it if i had to again.
but good luck hombre