Why not, yet another NL 25 KK hand

[Marc Desjardins]

PokerStars No-Limit Hold'em, $0.25 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

UTG ($25.85) 20/11/2.3
MP ($24.85)
CO ($14.25)
Button ($56.60)
SB ($11.75)
Hero ($26.20)

Preflop: Hero is BB with K[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/spade.gif[/img].
<font color="#CC3333">UTG raises to $1</font>, <font color="#666666">4 folds</font>, <font color="#CC3333">Hero raises to $3</font>, UTG calls $2.

Flop: ($6.10) 9[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $5</font>, <font color="#CC3333">UTG raises to $22.85</font>, Hero...

Lost again... I really want to call, but those calls have cost me so much over time... please explain what I need to consider before I decide... as I said, I'm really lost these days...