I had an instructor for my CIR who should never have been in the business. You are sure to start off on the wrong foot every time and it's difficult to learn in such an environment.
I quickly changed instructor (and FS) to a guy whose motto was " If you tell them they'll listen, and if you show them they'll learn".
Totally different approach, with far better outcome. I went from nervous and apprehensive to relaxed and looking forward to the next lesson.