@Justnice Honestly, when I was in college it was kind of rare for someone past their sophomore year to live in a dorm room. Juniors and some seniors would usually opt for a suite in the dorm. The suites were mainly two rooms connected by a shared bathroom, with two people per room. They had a bit more space than the regular dorm rooms, but were still in the dorm buildings. I had a suite with my best friend my junior year. Every suite on that floor, except one, was taken by other really good friends of ours. It wasn’t like we partied constantly, but we had so much fun just hanging out.
Some juniors and a lot of seniors would live in campus-owned apartments. You were still considered to be living “on campus,” even if the apartment was a couple of blocks away. Our apartment had three roomies. Two in one bedroom, one in another, with one bathroom, a living room area, and a kitchen. Since all of the other apartments in the building were also taken by students, it wasn’t much different from a dorm. We still had a Resident Assistant who was there, in theory, to enforce the rules about pets, smoking, drinking (dry campus), and visitors. Our RA was one of our closest friends, so we got away with a lot.
Whatever option your school has, you can give it a try. Like @JLeslie said, you can move out if you don’t like it.