at the time I wanted to throw in like a 1/3 pot value bet..i was pretty sure he had a 9 but i chickened out and got mad at myself

should i have done it or is that too thin?
Grabbed by
Holdem Manager
NL Holdem $2(BB) Poker Stars
SB ($158)
BB ($275)
UTG ($386)
UTG+1 ($296)
CO ($271)
Hero ($210)
Dealt to Hero Q

9
fold, fold, fold, Hero raises to $5, SB calls $4, fold,
FLOP ($12) 4

9

A
check, check,
TURN ($12) 4

9

A

6
SB bets $10, Hero raises to $30, SB calls $20,
RIVER ($72) 4

9

A

6

8
check, check,
Hero shows Q

9

(Flop 80.2%, Turn 88.6%)
SB shows 9

T

(Flop 19.8%, Turn 11.4%)
Hero wins $69