dude, it sounds like you are 3betting way too much.
This isnt nl400 where ppl understand what you are doing.
This is nl2, where ppl ignore what your bets signal. I would say 3 betting low PPs and suited connectors and gappers is spewing. Your not getting the preflop fold equity, you dont have the implied odds (b/c usually stacks are under 100bb) and your gunna be facing lots of tough decisions post flop.
I made a recent video playing micros, where I discuss my ideas:
http://www.megaupload.com/?d=W5O7FETA