In the first hand, I think your flop bet was a little large. After you got called you need to shut down because it's fairly obvious he isn't going anywhere.

Second hand, I don't like the raise with the AJ in EP at a full table. It is a trap hand and I frequently fold it from early position, sometimes even from middle position if the table has been loose. KQ is the same kind of hand, I generally am very cautious playing that hand I don't like to call any raises with it unless it's a button or CO raise. At the level you are playing at, there's no reason to bet that flop. If somebody has a king you're playing catch up, and even if somebody calls with bottom pair you can't be confident your hand is any good. You are building a big pot without much of a hand against a table full of calling stations, don't bother. You don't have to bet out on every flop you raised pre-flop either, I like to keep the pot small and try and see a cheap showdown in this type of situation.