Hand 1: Played fine. I like the relatively big bet on the flop and then your switch to pot control mode.

Hand 2: I would bet the flop. You don't have a made hand, so if you take the pot down it's a good result. On the other hand, you have a big draw, so you are building the pot in case you hit and your hand is better disguised if you do. As played, I think you did telegraph your hand somewhat on the turn - betting would have been better I think. It looks like you have a flush or a set. Would AJ, KJ, QJ, JT, J9, A5 check raise?

Hand 3: I don't like the second barrel. The only hand beating you that you might fold is QQ, everything else beating you is calling and everything you are beating is folding. I would check here.