There are small things I do diffrently in many of those hands, but the only one which was very poorly played is the last one.

Limp/calling raises with JQo UTG is a losing play, no doubt. I also hate your weak lead out on this flop. Either check it or make a real bet. Betting $6 and then calling a sizeable raise is horrible. Rest of the hand you just get lucky, AQ looks like his most likely holding.