Hand 1: The river bet here is really bad. I don't mind the rest but I probably don't bet the flop or turn quite as hard, say around 2/3rds of the pot on the flop and half the pot on the turn.

Hand 2: I might raise preflop here but limping is fine. You need to raise the flop to protect your hand just like you would against any other made hand protecting against a draw. Anyone with the A , two pair or a set has outs against you, so make them pay to draw. Also people who have also flopped a flush will have a flush lower than yours a majority of the time, so if you don't raise you can't take advantage of that.

With the 2nd hand, you'll learn that there are times when it's good to slowplay, but when your hand is likely vulnerable is not a good time to do so.