bleh you just stated your own problem...shocks.
If youve blown your shocks again then of course your ride will be bouncy they are the component that stops the spring from oscillating (bouncing up and down). Dont just go out and buy a new OEM shock they are not valved for a lowered car nor are the rods the correct length for extreme lowering.
If you want to do it right go and buy a set of aftermarket shocks like Tockicos or Konis.