I'm flying the A319, so you might want to adapt that to your particular aircraft.
This is what I do most of the times, some times I'll adapt it due to external factors obviously.
I will retard the throttle at 30, then I'll start my flare at 30 right away if LW is above 55 tons, otherwise I'll wait for 20ft.
Then once you start your flare, just pitch up slightly and look all the way down the rwy and let the aircraft slooooowly loose altitude.
Problem with me initially was that I didn't look down the runway, I looked inside wayyyy to much and transitioned outside at the last time. I had my fair share of booms but my landings significantly improved once I started looking way more outside, just like I used to be doing on the skyhawk
.
If you balloon, try to release sidestick pressure, but do not try to push the sidestick forward, don't try to increase the pitch either.