you didnt screw up hand three. it happens.

hand two was a MUCH scarier board to stack off with. and, you did it there.

at 2, 5, and 10NL, overpairs are very often the best hand on the flop...and stack worthy.

good fold, in hand one, too.

i think you played all three fine. good luck at 10NL. i dont think you'll see much difference in the play.