Hand 1 bet the flop bigger here, and don't make such a small three bet. Either call or reraise bigger imo. After you turn the flush I'd lead again, or c/r ai. The turn check min-raise made me throw up in my mouth a little.

Hand 2: Bet more on the flop, reraise bigger and then shove a blank turn. If the board paired I'd really be worried too and consider giving the hand up, especially vs a nit.