Work at making connections with people at college. It may not seem that important now, but take my word that it doesn't get easier later. You're probably not going to have much in common with people who are the life of the party, so go talk to another person who is also sitting alone. I happened to find a few people who became my friends for many years. In my case they have gone away now, died or just lost touch now. I do struggle with that now.
University is the best place for doing this, for after that everyone is concentrated on their careers and families and even the best friendships can be lost.