Coach's always say you are better than you are so you will continue to pay them money hoping to improve your tennis. If the coach was realistic, and decided to tell you..."you suck, you are hopeless, you are a geek, you are blind, and no amount of lessons will ever help your game".... would you continue to pay him? I've had tennis instructors come up to me and tell me I'm 5.0 material, based on watching a few points from the sidelines. I"m a low 4.0. They just need to inflate my ego so I'll dole out some money to them.