You sound like me when I was 20 (I'm 57 now :-) and I was treated for General Anxiety Disorder (GAD)

I would go to your school counseling center and talk to someone and see what you can see. I had my biggest problems at 20 and started counseling then (1970) and just finished therapy in 2005. What are you studying in school? Are you comfortable with the idea of going out "into the world" and starting life on your own, getting a job, etc.? I had enormous trouble with that. But I didn't date and didn't have many friends and didn't get married until I was 39 but I'm perfect now :-)