Hey buddy, One thing I would have done if I was in your position (already knowing you want to be a CRNA at such a young age) would be take GRE sooner than later. The older you get, the rustier you get when it comes to that sort of thing. Try and take it as soon as possible. You'll save yourself a little headache down the road. I took it in my 30's for CRNA school and it was A LOT of studying to get brushed up on all of those triangle rules :-) Had I taken it at 19 or 20, it would have been a lot easier. While its dreadful to take when school may be years off for you, in the big picture you'll probably get a better score and save a lot of time. Just keep in mind the scores are usually only good for 5 years. Good luck in your pursuit.