Just sat down so this is the first hand, no reads. I think my only mistake is the Flop bet. I should have potted it. May not have changed the outcome, but maybe gave Villain opportunity to push my of KK's?

Is this OK?

PokerStars No-Limit Hold'em, $0.25 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver Cards)

SB ($31.50)
Hero ($25)
UTG ($25.60)
MP ($17.70)
CO ($23.25)
Button ($24.40)

Preflop: Hero is BB with , .
3 folds, Button calls $0.25, 1 fold, Hero raises to $1, Button calls $0.75.

Flop: ($2.10) , , (2 players)
Hero bets $1, Button calls $1.

Turn: ($4.10) (2 players)
Hero bets $2, Button raises to $4, Hero raises to $6, Button calls $2.

River: ($16.10) (2 players)
Hero bets $2, Button raises to $7, Hero folds.

Final Pot: $25.10