play worse after reading poker books - !?!

I have been reading Harrington on Hold'em V1, and Sklansky's Theory of Poker in the last few weeks. I have found that found that my game has actually suffered after reading those. I suppose its because I need be more patient and take the time to incorporate ideas from the books into my game. I can spot mistakes and better understand what other players are doing, but I have problems taking advantage.
Any thoughts?