Threw away AK too late?

[rickw]

I am pretty new to Poker and have been having fun (still losing a bit but improving) and learning. After going through my hands, I have come to the conclusion that I hang on to losers too long.

My question: Looking back, am I correct to conclude that the bet on the turn was a mistake? Any and all comments appreciated.

Party Poker 0.50/1 Hold'em (9 handed)

Preflop: Hero is UTG+1 with A[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/club.gif[/img].
UTG calls, <font color="CC3333">Hero raises</font>, MP1 folds, MP2 folds, MP3 calls, CO folds, Button folds, SB calls, BB calls, UTG calls.

Flop: (10 SB) 4[img]/images/graemlins/heart.gif[/img], 5[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/club.gif[/img] <font color="blue">(5 players)</font>
SB checks, BB checks, UTG checks, <font color="CC3333">Hero bets</font>, MP3 calls, SB calls, BB calls, UTG folds.

Turn: (7 BB) 4[img]/images/graemlins/diamond.gif[/img] <font color="blue">(4 players)</font>
SB checks, BB checks, <font color="CC3333">Hero bets</font>, MP3 folds, SB calls, <font color="CC3333">BB raises</font>, Hero folds, SB calls.

River: (12 BB) 5[img]/images/graemlins/heart.gif[/img] <font color="blue">(2 players)</font>
SB checks, <font color="CC3333">BB bets</font>, SB folds.

Final Pot: 13 BB