Trouble extrating value from a floped set(PS 1$ 45 players)

[jdog1999]

It seems that lately when I have flopped a set the board either has a st8 draw or a flush draw. So I push to collect the pot. Am I more scared than I should be?

Here's an example hand. I read the 20 dollar bet on the turn as either a probe bet or a blocking bet to see the river card cheap. So I pushed to take the pot. What do you guys do when you flop a set on a scary board?

PokerStars No-Limit Hold'em Tourney, Big Blind is t20 (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

UTG+1 (t1360)
MP1 (t1070)
MP2 (t3290)
MP3 (t2300)
CO (t1750)
Hero (t1470)
SB (t1380)
BB (t1180)
UTG (t1530)

Preflop: Hero is Button with Q, Q.
UTG calls t20, [color=#666666]1 fold</font>, MP1 calls t20, [color=#666666]1 fold</font>, MP3 calls t20, CO calls t20, [color=#CC3333]Hero raises to t300</font>, [color=#666666]2 folds</font>, UTG folds, MP1 folds, MP3 folds, CO calls t280.

Flop: (t690) J, 2, Q [color=#0000FF](2 players)</font>
CO checks, Hero checks.

Turn: (t690) 4 [color=#0000FF](2 players)</font>
[color=#CC3333]CO bets t20</font>, [color=#CC3333]Hero raises to t500</font>, CO folds.

Final Pot: t1210