As you approach the threshold move your focus from your initial aim point gradually to the end of the runway and at the same time adopt the landing attitude (usually put the nose on the horizon i.e. the climbing attitude.
Once you have the landing attitude DON'T CHANGE IT then use power if necessary to adjust the sink rate.
To help you learn this, if the runway is long enough fly along as low as possible in the landing attitude and use the power to stop you touching down. Once you can do this consistently landing is a mere case of closing the throttle.
FIS
PS Make sure you can see properly (i.e. use cushions if necessary).
PPS. Don't worry about it too much, they'll get worse before they get better (then worse again
)