uggg....why can't i win at 100NL

Poker is a funny thing. I am running like shit at 100NL 6 max. i up only like 1 buyin over like 9K hands. The funny thing is that HU 100NL I am running quite good. Up 700$ over 700 hands. Grrr...but here are a few interesting hands that have come up

http://www.pokerhand.org/?1042820
I really considered bluffing agian here, but I was just to scared to do it. I figured I could be beat, but was scared he would not fold as he was very loose, and kind of a calling station.

http://www.pokerhand.org/?1042830

Based on my read from the last hand, villian's weak lead is 100% weakness. I have no problem calling here as i am 90% sure he is bluffing.

http://www.pokerhand.org/?1042866

Strange hand. Deep stacked so i have implied odds to call. Flop comes down dry so I bet. Villian is a total nit, so i figure he may sometimes fold under pairs, and AQ. My bet has some value. After his call, i decided just to check it down.