Damn kid, good on you for having your goals thought out and researching them like you are doing. When I was 15, my goals were getting my driver's license and slaying tail on the weekend.

That said, focus on finishing high school and getting into a good college. As far as military, don't just look at the AF, look at Navy, USMC, and USCG too. Lots of differences. The commitment is less on the navy side, but the chance of flying helos is greater and those hours don't really count at a major airline. And, don't count out the Guard/Reserve. All in all, it may not be for you, and that's okay. Also, have you started on your private pilots license?

My advice, you're young and have plenty of time. Keep those grades up, start looking into college and have fun flying and living life.