You block/I bluff

[jessyj07]

Villain is 25/12/1.39/93 hands. I didn't raise preflop because last time I tried isolating him he limp reraised and I folded and I don't want the same to happen here.

My thoughts: On the flop, this is an obvious raise. On the turn I'm betting so if I hit I can get his stack. Once he calls the turn I'm sure he has a one pair hand and I've repped a very strong hand so I'm not sure if I'm bluffing the river or not. On the river he blocks and I nearly instantly push. Figured I had to act quick if I wanted my push to be credible. Is my thought process good?

PokerStars No-Limit Hold'em, $0.50 BB (5 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

BB ($49.75)
UTG ($48.70)
MP ($96.80)
Hero ($66.70)
SB ($110.70)

Preflop: Hero is Button with 5[img]/images/graemlins/club.gif[/img], 8[img]/images/graemlins/club.gif[/img].
UTG calls $0.50, <font color="#666666">1 fold</font>, Hero calls $0.50, <font color="#666666">1 fold</font>, BB checks.

Flop: ($1.75) 5[img]/images/graemlins/diamond.gif[/img], 6[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
BB checks, <font color="#CC3333">UTG bets $1</font>, <font color="#CC3333">Hero raises to $4</font>, BB folds, UTG calls $3.

Turn: ($9.75) 3[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
UTG checks, <font color="#CC3333">Hero bets $7.5</font>, UTG calls $7.50.

River: ($24.75) T[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">UTG bets $9</font>, <font color="#CC3333">Hero raises to $54.7</font>