Try this. Make sure you cross the threshold at the correct speed/height and in trim. As the ground comes up to meet you and the edge of the runway appears somewhere at ear level (periphally), look to the far end of the runway, smoothly close the throttle and simultaneously select the landing attitude (ask your QFI to show you.) With the aircraft in this attitude and no power, it can only go down and settle on the mainwheels.
1. As you close the throttles, the nose will tend to drop - don't let it.
2. Once on the ground, the nosewheel will tend to drop (C of G in front of mainwheels) - don't let it. Lower the nose under control.