One other piece of advice. My dad gave me this one just before I went in. "Grab a mop and walk with a purpose." If it looks like you are supposed to be doing something they won't give you something else to do. The bs usually starts when they think you have too much time on your hands.
Seriously though, sounds like you'll be fine. And just think, when they start the "X more weeks and I'll be home," cadence calls for you it will actually be true. For active duty guys they will just be changing chowhalls.