Sorry, I don't have as much time as I had when I started this thread anymore :(

Maybe I can try helping later :/

I would study some lines from the queens gambit declined as well. a Lot of openings mainlines are played because players can transpose into ideas from other openings that are considerer = or good for them. This why I think its good to study related structures even if your main focus is on X opening. Nimzo, Queens indian, queens gambit declined 

I have Polugayevsky's book on QGD, but I haven't had a read of it. I guess it makes sense to have a bit of a working understanding of QGD and Tarrasch as the Nimzo ...d5 and ...c5 moves put up those sorts of structures. The Lev Alburt / Roman Dzindzichashvili book (Chess Openings for Black, Explained) gives Bogo-indian lines for black vs 1.d4 Nf6 2.c4 e6 3.Nf3 but so far I haven't had to play any of these.

Are you still going over games ?

@chessmaster102: Daeru isn't (busy) but there appear to be any number of willing kibitzer's here!

dont worry too much about things right now,... study the book you have and then use to create a structure to build on and modify as you learn. keep an open mind 

I would recommend also getting Pawn structure chess by Soltis. This will give you a structure so that the moves all make sense