[threeonefour]

you messed up the turn action. the CO couldn't have checked raised the turn, he was bet into.

does commerce have a 4 or 5 bet cap? if its 5 not making it 4 on the flop is a sin. if not, i still think capping is best but whatever, mix it up.

3 bet the turn. you have 2nd set, 2nd set is really hard to beat. you have also underrepresented your hand so far.

EDIT: one last thing, literally the only two hands a solid CO could have that beats you is JTs (but not likely clubs) and 7c6c. 76c has to be discounted because he will find a raise the second time around almost always, plus he likely wouldn't call with it preflop. there isn't close to enough evidence based on his betting that he holds one of those particular hands, i really hope you didn't flat call. similarly, UTG+1 could have QQ and thats about it, and he certainly hasn't narrowed his range down that much from his initial raise preflop. not really room for discussion on the turn imo.