[pauliewalnuts]

Hand 1: You gave way too much action here. If you opponent is a true maniac and you are intent on seeing a SD, I'd just call down. As you played it, you can fold to the flop 3bet

Hand 2: Standard. I dont think bet/folding the turn would be the worst thing however.

Hand 3: Bad. Fold to the flop 3bet. If it turns out that you would have won this hand, well that happens eventually. But you cant take AK to SD every hand if you opponent(s) is aggressive.