300NL 2 live hands shortstacked

[Semtex]

I just made my first trip to Commerce. The 2/3 game is capped at $100. I don't know how shortstackers do it, because I was lost in a few hands. Here were some highlights. These hands happened in the first couple orbits so I didn't really have reads, but in general the players were aggressive/bad:

I have ~$150. A few limpers and I limp in MP with K[img]/images/graemlins/diamond.gif[/img] 5[img]/images/graemlins/diamond.gif[/img]. Lots of limpers behind and the flop came 2[img]/images/graemlins/diamond.gif[/img] 3[img]/images/graemlins/diamond.gif[/img] 4[img]/images/graemlins/heart.gif[/img]. Checked to me and I bet $15 into a $21 pot. Guy to my left, who probably has $150-200 and is not very good calls. It folds around to one of the initial checkers who goes all in for his last $40 or so. I go all in for my $130 or so. Terrible?

So I lost that hand, rebuy for $100 (I didn't know you could rebuy for 1.5 times the initial buy in if you bust, that information would have been key), lose with pocket kings against QJ, and rebuy again. I get 10[img]/images/graemlins/diamond.gif[/img]10[img]/images/graemlins/heart.gif[/img] UTG, make it $10 and get 4 callers (raise more maybe, or just limp??). Flop comes 9-7-7 rainbow and I bet $30. Some chick who has me covered min-raises to $60. Everyone folds. Its $30 for me to call into a ~$150 pot and I have $60 behind. Its obviously push/fold, but which one??