TweetIsn't paradeca OTC junk? It's pretty much useless. Get some test or REAL deca (preferably test) and run it for ten weeks (with dbol the first few weeks if you so desire; btw pyramiding dbol isn't the way to go).
3-4 hours and then cardio!?!? Might wanna cut back on the duration of those workouts. Sounds to me as if you're overtraining.