See a counselor at school ASAP. You will find that they are busy with many kids who feel as you do. You have built up the courage to post here. Now walk yourself to the counseling center and make an appointment today.
You have been around high school friends for years and years. You have been at college for a few months. It takes time. Trust me, we all know someone who feels as you do. Be proactive, do something to turn your negative thoughts around. You are not ugly and your personality doesn’t suck. Get a campus job, or volunteer, or join a club. You will find your people by being proactive.