let your bluff go

Here's a hand from one of the 180 player tournaments . In the interest of playing within my bankroll, it was a $4+0.40. I didn't think the players were all that different from a $20+2 180 player. Anyway, I caught some cards and got a chip lead when we were down to two tables. Then I made an awful bluff.

http://www.pokerhand.org/?1935124

I felt like QTo as strong enough to call with in the BB with the SB just trying to steal my blind. When the flop came 9 high and he bet into me, I'm not sure quite what I was thinking. I had been pushing the table around a lot and probably thought I'd continue by representing a hand on the turn. When a 9 came on the turn, I felt like I could represent a 9 with a raise. But then I get a call. An alarm bell should have been going off in my head for two reasons - 1) the SB was strong or at least he thought he was and 2) the SB was not going to lay his hand down. But he didn't come over the top of me on the turn, so I felt weakness. I didn't put him on a hand, just weakness. Feeling weakness and a check on the river, I bet into him. Well, he calls and turns over an overpair.

I already know that most of the players I play with can't lay down top pair - and probably never an overpair. I should have even been concerned about a 9. That call on the turn should be more of a signal to me. Oh well. I lost 3/4 of my chips and finished 14th after having the chip lead with 15 players left.