Well, I'll cut you some slack since I see from another post, you are still in High School. I have to give you props for evening thinking of College b/c when I was in High School forever ago, I was thinking I was going to live off my generous parents forever.
I have had friends that went straight from HS to a BSN program. They weren't big party goers or drinkers. Not to say you didn't see them from time to time. I can't imagine that they were "typical" college partygoers. Maybe once in awhile, but grades always came first. They were both more "steady boyfriend" types, and they are both genius's. (ms?) They are the kind of students that never got B's, even when they tried for them, lol. They can just absorb information.
You need to think if this is really for you. If you feel like you are undecided and maybe not mature, and I don't mean this in a degrading way, enough to go thro a BSN program after HS, look into other options. Maybe, you are like me, when I was graduating HS. Knew at some point I wanted to do something, but worked and studied general courses, eg: psych, etc. at a community college.
BTW- I'm from the stl area if you are interested in any part of that midwest.