landing
Slowing things down can make it easier to land (especially in benign weather conditions). That might mean a long 60 knot final.
Later you'll need to learn how to fly 80 knot, 70 knot, 65 knot, 60 knot and 55 knot finals.
Don't worry. It's natural to be having these worries at 20 hours. The bad news is you'll be having them at 200 hours too!
(Also, FWIW every instructor has a different style. Learn the way your instructor wants.)