Your question can't get a decent answer, simply because it asks for too much information and there is no magic available to get that instantly. My advice would be to get a poker software (It doesnt have to be sophisticated, even PokerStove might be enough but I prefer Equilab) and work on your ranges. First, you need to know how your range looks like (from each position, so you should analyze the spots one by one, like you 3b an EP open from MP, from LP and from the blinds and etc)...is it too nitty? Is it too loose? Then you should start studying the flop textures one by one, and what is the equity of your range against your opponents range. Do you have a range advantage in a specific board texture? How many value combos and bluff combos you have in that board texture? Can you go for 3 streets of value with your value hand(s)? If yes, what sizing you should use to maximize EV (to answer that you gotta have a deep understanting of your opponents range)? If no, what is the best street to check? How to maximize your EV by playing your range in an exploitative way against an specific opponent? There are lots of questions to be answered, by I think you can start already. Try to focus in one thing at a time, so start by pre-flop ranges, positions and sizings, and then flop and so on. Yes, it is a lot of work! I'm far from finishing it myself too, so get started! Check this thread 50 shades of flop texture, where there are 50 different flop textures for you yo start studying.

This board is not a terrible board to c-bet in general but think about all the hands villain might at least peel the flop with: any two heart call, any J or better; well, taht doesnt seem too much. But now think about that even 44 have second pair to the board and microstakes player tend to believe they cannot fold 2nd pair to a c-bet.
Now think about the range you are representing by 3betting : aq, ak and 99++ , you would bet all your overpairs, but you shouldnt have a J too often.
Therefore, a king or ace high board is much better to c-bet if you miss. C-betting ak here is more like a marginal semi-bluff / protection against random life cards.

I would 3 bet at least to 1,5 because youre deep with both MP and CO and they will be getting too good of implied odds to call. And cbet 2 doll because i doubt you would go smaller than that with overpairs so its good to be consistent with your sizing, and 2 doll looks much bigger than a number thats starts with 1, so they might call 1,7doll with 99, TT,88, where as they might sometimes just fold to 2 doll bet i think. And i would barrel on Q,K or A and also hearts. And check/f to everything else, so looks pretty well played here not much else to do;)

I would play a mixed strategy here, x/c mostly. Cbetting doesn't achieve much to me.. Hand gets easier to play as well. Cbetting could be nice if villain is overfolding vs cbets.