USAFA: what are my chances?

I have applied to the Air Force Academy and I’m not sure if I stand a chance or not. I recieved a 28 on my ACT. I also scored a 690 for SAT math and 580 for SAT reading. My unweighted GPA is 3.71 and 4.1 weighted. I have taken 8 AP courses and plan on taking 4 more for senior year (I have taken AP Calc 1 and will take AP calc 2). I am the president of two clubs. One is an after school weight teaing program and the other is for National Technical Honor society. I am a member of National honor society as well. My school is ranked in the top 50 in the nation. I am ranked 40 out of 130 students. I have had a job for two years and over 100 volunteer hours. Advice on how to improve my resume would be great.