Well first off try not to play in 1/2 NL unless thats all you can afford to play. Try a least 3/6 4/8 5/10 NL and play a little more short stacked. That will help cut down on some of the loose play. I mean in 1/2 of course, I'll see every flop if I only get raised 3 times the big blind with QJ big deal $6 but in a higher limit it tends to be a little tighter play, ...but not always. Which takes me to my next point, your pre-flop raise was too weak. I was playing with Phil Gordon the other night and his theory with AK pre-flop is get yourself heads up whatever it takes. Ususally 6 to 10
