I don't have any friends except my bf

I'm really lonely and stuck at a community college where the student body is much older than I am. (18) I'm already shy, but I like social interaction im just too shy to ask people to hangout. I haven't hung out with anybody in months and just talking to other people now gives me anxiety and I feel socially awkward. My boyfriend isn't keeping me from doing any of this, he's just the only one I've hung out with. How can I boost my confidence in social situations and find some friends to hang out with?