hand 1: check/ fold to a decent sized bet, check call to a small bet, though i also dont mind a semi blocking bet on turn, $7.5 sounds good to me.

hand 2: Played fine, now just check/fold river to any decent sized bet.

hand 3: You butchered this hand, your arguement for checking the turn is that hes weak and will fold to another bet? Well even if thats the case, and its often not the board is quite substantially drawy so not betting the turn when you have the nuts is suicide imo and your not only losing a ton of value but letting him draw for free. On the river just shove all in for value, q10 makes up a miniscule part of his range.