Joe, if you just started your tour in the sandbox (thank you for your service!), I'd apply now for your DE CCW. By the time you come home, it should almost be ready LOL. Ok, in all seriousness, the DE process is archaic and the materials are subpar.
However, you'll find all the information you need here to get through the process. PA is a flash compared to DE.
Welcome to the site!
FYI, if you or your squadron need anything, (letters, toiletries, magazines, etc) please be sure to PM me. I mail a box each week to various branches of the service containing a variety of items. I have a ton of friends and family that donate everything.
Moosie