You're hearing great advice from everyone with regards to flying but I will also add that you seriously look at and consider the AFA. You say you have an appointment there and those dont come easy so make sure you know what you are passing up. Its not for everyone and there are many other good schools but in this profession many things can knock you out of the flying game and you definitely want to have a solid background to fall back on. In addition, if you do fly I would guess there are probably more airline pilots from the service academies than from any other single college (except maybe ERAU). If I'm wrong I know someone will quickly correct me....