Few people learn the business this way because there's never been an easy way to find such people. We're hoping that those who are looking for a mentor, and those who are willing and qualified to mentor others, will find each other there. So your first step should be to post a message there.
Most people enter the business via a live course.
Unfortunately almost all of the beginner courses are taught by charlatans preying on people who want to learn the note business. There's currently only one live beginner course I recommend. E-mail me for more information. Naturally, the former is pretty complete, and the latter is a bare-bones introduction. The monthly publication is not a complete course in notes, obviously, but it is the best source of continuing education available.