A friend of mines brother was really nervous about landing, and psyching himself out.. I think a good exercise is to practice flying the pattern at about 40 feet high..when you can go straight down the runway. make gentle turns without losing altitude, and then fly the back of the pattern parallel to the runway lap after lap..just perfect that boring level oval in the sky .....then move on to this. Continue the pattern at around 30 feet high down the back.make your gentle turn to final, let the plane settle with a little less throttle then fly ten feet above the runwayas centered over it as you can., throttle up and climb to about thirty feet gentle turn to the downwind leg..hold elevation, turn to final and fly ten foot pass again.

Once you can fly the pattern with a higher leg on the back, and about ten feet down the strip..consistently. you are just a slight chop of the throttle from landing a trainer..

It helped my friend get used to the gaining and losing altitude by his command, instead of letting the plane fly him..he was landing soon after wards.. Hope this helps...