hand1
take a look at hand 2. This may very well be the problem you face here. For me you either push over the reraise or fold. Calling is bad to me because you need a 2 outer on the turn, i dont think you get to see the river here. It may simply be someone who doesnt think you have the queen, but morelikely your overpair is beaten here imo
hand2
Nothing wrong id defend my hand here too with a reraise. Although, i dont put him on the draw so i doubt i push the turn, because i dont think opp would call. But he did so hey.
hand3
Again nice play. Opp tries to be smart on turn but he should fold when you push but again he calls. This is how you make money imo at 50nl because too many players will make awful calls with tpgk. just remember to respect the push if you are in opps chair here.