Bad spot with AK

[funkhauser]

I've been losing lately due to some bad tilty play combined with a string of bad luck and bad cards. Here is a hand i lost last night. So i was playing 8-handed at a local casino in Bucharest , blinds 10-10 Ron(that's right- no small blind)- 10 Ron is somewhere between 3 and 4 $. The game is pretty loose and my opponent is really fishy, playing bad hands in front of raises and chasing a lot. I had 1150 Ron and he had me covered. There was a 20 Ron straddle and i opened from early position to 100 with AKc. Villain called from middle position. Everybody folded. The flop came A86 rainbow. I bet 150 and he called. I wasn't really worried about his call as i put him on a range of A9o+ , any suited A, 66, 88, and maybe some draws. The turn is a 5. Sure the 79 got there and the A5 suited but i still think it's a value bet as i'm ahead of most of his range. So i bet 350 into a 520 pot. He calls. The river is a 2. I shove my last 550 , he calls and shows 56 suited and wins. Did i misplay my hand? Should i not have bet the turn? Or maybe i should have bet the turn smaller to be able to fold to a shove or check-fold the river?! Please give me your opinions on this hand. Thanks.