It was hard for me at first to find people I thought I'd like, but I am naturally shy.
If your're not, it may be confusing for you to be surrounded by total @$$#()||@5, who seem to have very set ways of behaviour, that don't seem to mesh with yours.
But in time, you will meet people with common interests, and the jerks will learn to get along with the group and everything will proceed swimmingly
Don't make my mistake, and fall behind in your coursework. Just plug through, as best you can. If you are the person the admissions board thought you were, you'll end up fine -- and better than the lusers who just give up.