Your young and have a lot of time which is always a good thing
I would go for your BSN for sure. Take you time, if your worried about college, just start with your general education classes (English Comp, math, sociology, etc etc) first since.
You could just take a couple classes and work as a CNA, that will give you some really good experience. Your going to do great I think and your going to get more confidence the farther along you get.