You are what, 15 years old? Overall you won't exactly be able to think about going and doing stuff on your own until you're 18 and a legal adult, will also be able to get yourself a driving license and stuff in the years leading up to that. Then you have the years you will spend in the University if you get in, so that's maybe 4 or so years right there, and overall during all this time you can think about whatever it is you need to think about. You have quite a bit of time on your hands, so use it as you will.