I got drunk one time and one time only in college -- the toilet was my friend, repeatedly. Don't think I've had a rum and coke since.
Mostly I was studious, but I liked to enjoy myself on weekends, and I'm not talking about drinking alcoholic beverages. I'd maybe go out, listen to music, maybe some sports recreation.
I was a physics, then a math major and I eventually graduated in math.
I loved the university experience relative to grade school, which felt like I was in prison, surrounded by fences, paved with concrete and asphalt everywhere. The U was beautiful, landscaping, trees, grass, I was free to go as I pleased, I had electives, noone was doing roll call, but I never cut class. It was a privilege. I still get those dreams occasionally, like I guess just about everybody does of having dropped the ball on a class. I hate those.
My older brother preceded me there (UC Berkeley) and he and his wife (who he met there in the dorms) encouraged me before I attended to consider the frats because of the social life advantages. However, i never considered it. To me a fraternity was anathema. And no, I don't believe the first two years are for socializing. I got right down to my studies and getting A's.