I'll not take anything away from the others. Their advice is good. But can I ask a question? Are you looking in or out? I'm going to guess you are trying for 'to the number' perfection. I'm sorry to disappoint you, but that is achieved through experience. Instead aim for TLAR. Set a sensible power setting, fly the track and monitor your airspeed. As you get closer to the ground, LOOK OUTSIDE. The airspeed will be OK, the rate of descent should be OK and your speed should be alright. Then name sure you look down to the far end of the runway and let your peripheral vision do the work.
Happy landings.
PM