I'm a first year Uni student, and i have to say it's a lot different than i was expecting. My Uni is about an hour and a half away from home (walk, then train, then bus) because i can't afford to live in halls, but people don't really talk to you unless you make yourself approachable, which you really don't have to do. I've made a few friends, but it's not like high school, uni students tend to be more mature, so there's a higher chance of them accepting you for who you are. It's scary having to go away from home, but if you're like me and you love your routines, it's great. Lectures and seminars are at the same time every week.
If you have a friend, one who knows you well, it makes it a lot easier.
Hope this has helped