Had a look at some of your games on here.
You have the principles off OK as usual it's the middle game where
you (or your opponents) fail.
If time is a problem then perhaps try a systems book.
It's gives you an opening rep for White or Black usually with complete games
so you can see the middle game idea.
Of course it will not cover all the various tactics you may face - no opening book can.
This is your first game on here. Nothing silly in the opening, but as soon as
we approach the middle game you drift.
Your middle game pawn moves were bad. (14.c3??) They gave Black a won game,
he fluffed it. so you played some more bad pawn moves. (a4,c4 and hxg4)
just to give him his win again.
We were also treated to some awful defending. An opening book will not help there.
Block his lines of attack. Swap pieces. Don't invite him in. (26.Kf1)
RedSoxFan - D13 RHP 2008