You can still get into the Air Force. I enlisted in the Marines with a bit of debt myself. The only thing it will effect is your security clearance.
If thats the only thing wrong with your background Im sure you can get a Secret Clearance just fine. I would forget about any job requiring a TS Clearance though. By the way, make sure you pay it off ASAP after you get to your first permanent duty station.
You DO NOT want creditors calling up your command.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.