If you're not the drinking and partying until the twilight hours type, don't force yourself. You'll regret the massive loss in money, time and the general feeling of disgust that will naturally come along with it.
I drink seldom (at least to the point of getting absolutely clattered), yet for almost a month (I arrived at the earliest day, a fortnight before freshers week), I was getting slaughtered almost every night, and probably spent a few hundred quid on food, alcohol and club entrance fees. Regretted it, as until the Christmas period loan, I had virtually cock-all in cash, and had to borrow a hundred pounds off my parents.
A learning curve though, I guess.