What was that adage about the blind leading the deaf? I would suggest working with a real teacher until you "get the hang of it". A great deal of the posts here are from players ruined by neglect (their own misinformation or the same bad stuff that they paid for). Granted, kids can move forward with motivation alone. I certainly would not send one of my kids to a teacher trying to learn to teach by DIY. I would at least want some professional backup. There is nothing more important than solid basics. That has the biggest chance of success when the teacher also has solid basics. If you don't even know how the body and breathing work together, how can you keep from breaking the student?