When do i get scared (if at all)

[Alobar]

Normally I dont make posts like these, as they get made ALL the time, but I had a relative break from the game and now that Im back into full swing again, I've got questions about all the dumb little things I never had questions about before....anyway, heres the hand, and the obvious how many bets question

opponent is 18/12/2 but only like 50 hands, so give that the credit it deserves (not much IMO, heh)

Party Poker 5/10 Hold'em (6 max, 5 handed) converter

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

Flop: (6.40 SB) 7[img]/images/graemlins/spade.gif[/img], 3[img]/images/graemlins/club.gif[/img], 4[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets</font>, <font color="#CC3333">Hero raises</font>, <font color="#CC3333">BB 3-bets</font>, Hero calls.

Turn: (6.20 BB) T[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets</font>, <font color="#CC3333">Hero raises</font>, <font color="#CC3333">BB 3-bets</font>, <font color="#CC3333">Hero caps</font>, BB calls.

River: (14.20 BB) 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets</font>, Hero calls.

Final Pot: 16.20 BB

oh, and cap PF??