Any advice on the transition between highschool to college?

I live in a small town and preparing to leave for college next year. Can anyone relate to this and give me any good advice? Should I move to a big city? I am really scared about the year to come I dont’t know what to expect. I’m planning to go to a college for graphic arts… I just don’t know if I should go to Ottawa with my boyfriend. I just really need any advice on college life.