1) You are losing a ton of value by not 4-betting aces. A lot of people stack off with AK preflop, and the only way you're getting any value from AK if you flat with AA is if the case A or their K comes out. Even then, they won't be giving their whole stack to you all the time depending on board textures. KK/QQ/JJ might not pay you off if the board turns out scary for them. Also, by underrepping your hand, you might end up talking yourself into a call when you might be beat. Not 4-betting aces is just FPS, unless you are playing at super high stakes against the same players everyday or something and need to add deception to your game. Deception is probably never needed at micro/low/medium stakes. Just bet your hand and take someone's stack.
2) You're losing a lot of value when someone has an overpair to the board that is willing to pay you off and not believe you, thinking you have AK. They could also end up sigh-calling and paying you off with 1010. Also, on such a dry board texture, whiffed overcards and A-high are probably willing to look you on the flop, but not on the turn as there is only one more card to come as opposed to two. On such a dry board, they may also bluff-raise you, giving you more money (only place I see this on is 25NL Zone on Bovada
though, which has tons of aggro donks and spewy players). Also, in a 3-bet pot, a lot of people will float 1/2 pot-sized pots, especially IP. Also, small bets in 3-bet pots should be deemed suspicious by thinking players, so they might not reraise you with their overpairs. So just bet your hand.
3) I personally don't bet "big" on super wet flops because if we get action on our big bets, we are not going to be happy. Also, very big bets (85%+ PSB) is probably going to deter draws on the turn, so we're losing a lot of value. We also turn our hand face-up, and can get easily outplayed if we're OOP. You're basically telling your opponent that you have a big overpair or TPTK, which is not good. If you're reraised on a wet board when you bet huge, you should just be folding. You're repping an overpair and TPTK, and if you GII or call, you're either going to see a nasty combo draw, set, or 2 pair.
Advice would be to just bet your hand, and don't make your hand so transparent