[tigerite]

You shouldn't bet into it with so many people seeing the flop, because one is very likely to have the Q, or a pair, and neither will likely fold to a single bet on this board, because you wouldn't bet out with trips - there's no threat. Even allowing for them being thick enough not to realise this, and you saying "they only call here with the goods", when one DID call, you still led out on the turn, which was even more of a mistake than the flop bet.