$25NL KK - Feeling Lost

Im playing $25NL at EMpire to clear the 40% reload bonus and Im just feeling lost in general. I deposited $500, so I am rolled for it, I just cant seem to put anything together. These tables are incredibly tight and it is hard to get paid off. Ive been trying to have an aggressive image so that when I do raise with AA KK, etc. I get called, but it doesnt happen that way and when I do get called I often feel outplayed. Here is an example, its folded to me in the SB with KK, I raise to 4xBB and the BB calls.

Flop comes with 2 hearts and all unders, I bet a little more than half the pot, and villain minraises me [Villains stats are 25/12/2.3], I call. Should I have reraised here? Turn comes a 7, I bet $5 into a $7 pot, villain pushes, I call. The two things I think I may have done wrong are not reraising the flop, and calling the push. What are your opinions?

Party Poker No-Limit Hold'em, $ BB (10 handed) FTR converter on zerodivide.cx

MP1 ($28.50)
MP2 ($12.55)
MP3 ($3.80)
CO ($32.65)
Button ($22.90)
Hero ($24.75)
BB ($24.50)
UTG ($36.85)
UTG+1 ($10.40)
UTG+2 ($24.10)

Preflop: Hero is SB with K:heart:, K:diamond:. Hero posts a blind of $0.10.
8 folds, Hero (poster) raises to $0.9, BB calls $0.75.

Flop: ($2) Q:heart:, 8:spade:, 3:heart: (2 players)
Hero bets $1.25, BB raises to $2.5, Hero calls $1.25.

Turn: ($7) 7:club: (2 players)
Hero bets $5, Hero calls $16.

River: ($28) 2:diamond: (2 players)

Final Pot: $28