Continuation bets

[colehard]

I am having trouble blowing a large % of my stack on continuation bets and then getting reraised on the turn. The following is a typical situation:

5 Seat $11 70%/30% pay structure - blinds 10/20 -stacks all about 1000

Hero posted small blind (10)
Hero has K[img]/images/graemlins/diamond.gif[/img] J[img]/images/graemlins/club.gif[/img]

> UTG called for 20, CO folded, Call, Hero raised to 100 BB folded, UTG folded, Button called

Flop(5[img]/images/graemlins/spade.gif[/img] 3[img]/images/graemlins/spade.gif[/img] 3[img]/images/graemlins/diamond.gif[/img])(pot 240)
Hero bet for 180, Button called for 180

Turn(6[img]/images/graemlins/club.gif[/img]) (pot 600)

Now what?