The hardest thing for most instructors to learn is to tailor their training to the student. Not everybody learns the same, and not every explanation will sink in. You have to find the methods and explanations that work best with each student. I once watched an instructor (full sized A/C, but the same idea) spend 15 minutes going over the same explanation over and over, and each time the student didn't get it. I later pulled him aside and tried a couple other ways before he finally got it. Just remember Einstein's definition of insanity: "doing the same thing over and over again and expecting different results." It is rewarding and will win you some new friends, if you have the patience, a good foundation of aeronautical knowledge, the ability to adapt your style, and some good planning.