Advice sought on flight training 'dead stick' landing

I’m having difficulty nailing this lesson successfully. I’ve done the others up to it with (eventually) an A.
I seem to be able to control the glide path on about 50% of the attempts but the flare is the problem. The instructor explains what’s necessary and what the flare is and then later says, ‘we are coming up to the flare [ten feet] but resist the temptation to pull up early’. I’ve tried this a couple of times but crash into the runway almost before the instruction is finished, so in order to keep the aircraft airborne, I’ve pulled up a little. Then when the time comes to ‘look at the end of the runway pull up gently’ instruction, one hears the engine noise drop as the software presumably takes cont ol of the throttle and at that point efforts to make an accurate pull up don’t work for me. It seems as though the softwate and AI voice is ahead of where my plane is and that after I pull up nothing that I do has the effect that I expect. If anyone can give me assistance on this I would be grateful.
Trevor.