50NL, tell me all the ways this is terrible

[Danimal 3000]

Full Tilt Poker - No Limit Hold'em Cash Game - $0.25/$0.50 Blinds - 6 Players - (LegoPoker Hand History Converter)

SB: $10.80
BB: $45.85
<u>Hero (UTG): $50.00</u>
MP: $31.55
CO: $33.00
<u>BTN: $147.75</u>

Reads: <font color="blue">villain is 35/12 2.7</font>

Preflop: Hero is dealt Q[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/spade.gif[/img] (6 Players)
<font color="red">Hero raises to $1.75</font>, 2 folds, BTN calls $1.75, SB folds, BB calls $1.25

Flop: ($5.50) 6[img]/images/graemlins/club.gif[/img] 9[img]/images/graemlins/club.gif[/img] 6[img]/images/graemlins/spade.gif[/img] (3 Players)
BB checks, <font color="red">Hero bets $3.50</font>, BTN calls $3.50, BB calls $3.50

Turn: ($16) 6[img]/images/graemlins/club.gif[/img] 9[img]/images/graemlins/club.gif[/img] 6[img]/images/graemlins/spade.gif[/img] 3[img]/images/graemlins/heart.gif[/img] (3 Players)
BB checks, Hero checks, <font color="red">BTN bets $9.00</font>, BB folds, <font color="red">Hero raises to $29.50</font>, <font color="red">BTN raises to $50.00</font>, Hero calls all-in for $15.25
Uncalled bet of $5.25 returned to BTN

River: ($105.50) 6[img]/images/graemlins/club.gif[/img] 9[img]/images/graemlins/club.gif[/img] 6[img]/images/graemlins/spade.gif[/img] 3[img]/images/graemlins/heart.gif[/img] 4[img]/images/graemlins/spade.gif[/img] (2 Players - 1 All-In)

Pot Size: $105.50 ($3 Rake)

BTN had 3[img]/images/graemlins/spade.gif[/img] 3[img]/images/graemlins/club.gif[/img] (a full house, Threes full of Sixes) and WON (+$52.50)
Hero had Q[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/spade.gif[/img] (two pair, Queens and Sixes) and LOST (-$50.00)

Villain gave me a nice little slowroll on the turn, too.