Preparing as a high school freshmen

I am a female high school freshmen and would really like to attend the Air Force Academy. It has been my dream to go there and become a pilot. I know I am just a freshmen, but I also know acceptance rates are extremely selective and it has been getting harder to get accepted. I want to have the most competitive application possible and was wondering what is important to do now. Thank you for helping me and it is greatly appreciated.

I run Cross Country, didn't letter but expect to letter...

Preparing as a high school freshmen