dont raise here preflop.
why do you bet pot sized on the flop and put only 1/4 in on turn? if you don´t think your hand is good here, check and maybe call and look for a cheap showdown. such smallish bet on turn is a waste of money, you´re giving great odds to draw on you, you´re not getting the max amount of money in the middle if you´re ahead and villian is willing to call plus you´re screaming weakness. assuming you´d fold if villians pushes here, a check would have been the cheaper way.