From my experience in college so far, a lot of people are actually antisocial or shy or awkward... so you won't be alone. Maybe this is a stereotype, but I think the antisocial and awkward folks tend to gravitate towards some fields more than others... So the number of antisocial people you meet will probably depend on your field of study. Nevertheless, you're not alone and I'm sure you'll do great!
P.S. If you have Orientation, do attend it because it will allow you to meet people in a more interactive environment. It helped me make some friends in first year even though I'm also quite antisocial.