Hand 1: No reason to even continue past the flop against a 3-flushed board. Suited crap is obviously in villain's range.

Hand 2: Fold on the flop, only getting 5:1 on your call when it's what, 10:1 to hit that 3rd 5? As played it's fine and you got unlucky, villain could be pushing a draw or TPGK or even 2 pair with the AJ.

Hand 3: Again, flop play. Scary as hell board with obv. straight and diamond draws. Bet out $10, fold to a re-raise, if called re-evaluate on the turn. If you were that intent on pushing out a draw, a $20 overbet of the $14 pot does the same as a $100 overbet. Less is more sometimes.