I'll let you in on another little secret about being an instructor, you don't have to be an expert pilot to start teaching new folks. You do want to be reasonably proficient at flying something more advanced than a trainer before you risk crashing a student's plane. However, assuming you have established good flying habits yourself and have set the proper parameters for timing of any intervention needed, letting students get their planes all out of orientation and then recovering for them is something that will improve your own skill level very quickly!