I think a raise preflop is key. since your UTG, and you raise, even some nano limit tables, people will fold medium hands to such an early raise, and i think that AJ was strong enough to call a possible reraise. I think a bet on the flop would have probably saved you a bet(i dunno about 3 betting on that flop), and check raise the turn. You almost have to call the river, since its like 9-1, and your playing against maniacs.