Both of my elder two struggled with this as well, even when knowing HS friends at the college. Those people were doing other things. Which was getting involved in something instead of just wandering around, spinning in circles, saying hi to people who walked on by. Finally they decided to try a club. For one, it worked out perfect on the first go. For the other, while she met people and it was better, through that club, she discovered another and it made all the difference in the world. That put her in contact with other people, that developed friendships naturally over time through their projects. The party scene is not where I would be looking to find your best friends or lasting love (no one is themselves when drinking.
My youngest, who is a freshman, saw this first hand and already knows one club he wants to join and is looking into maybe some others he would enjoy. Their club fair is next week.
When your school has their club fair, go visit. If they don’t have a club fair, then they have a website that lists every club. Get busy looking.
It is hard to get out of our comfort zone but do it. If none of them knock your socks off, pick one anyway. You never know what could happen or where it might lead you next. You don’t know what is out there until you get out there and make something happen instead of waiting for it to happen to you.
Good Luck!!! You can do this.