Going to college with anxiety

I am starting a new life at a big University this fall and honestly - I am terrified. I have always struggled with anxiety and I have irrational fears that I can literally dwell on for days or weeks. I have never drank before and my college is a big party school. I am in contact with my roommate and she says she is so excited to party and I just agree when I’m actually terrified. I find social situations draining and have a hard time being comfortable around people. I just want to fit in and feel at home and make new friends. I know this will be good for me but this whole summer I have been constantly thinking about how I don’t want to leave my home and my family – I know I have to. I am SO close to my parents and love seeing them everyday. Even though it’s hard, I believe I can grow from this. at least I hope so. does anyone have any tips? I feel pretty much hopeless and I’m tired of crying every night.