I had that problem, I would flare too early trying not to get too close to the ground and would drop. After a couple of weeks of touch and goes I have gotten to where I let the plane(LT-40) get lower before I start the flare and the landings have smoothed out.
BTW- I try to look at "stall" like this- The plane will stall, but the engine will quit. It seems to take the confusion out of what a stall is.

rod