Villain is unknown.

PokerStars - $0.10 NL (6 max) - Holdem - 6 players
Hand converted by PokerTracker 4

CO: $4.43
BTN: $10.71
SB: $5.31
BB: $4.00
Hero (UTG): $10.00
MP: $7.19

SB posts SB $0.05, BB posts BB $0.10

Pre Flop: (pot: $0.15) Hero has 7 7

Hero raises to $0.35, fold, fold, BTN calls $0.35, fold, fold

Flop: ($0.85, 2 players) 5 K 5
Hero bets $0.65, BTN calls $0.65

Turn: ($2.15, 2 players) 4
Hero ???

Should I be firing again here? Villain doesn't always have a K or 5 and I think we can get folds some of the time from 88-TT as well.

Or do we give up and try to get to showdown now.