Let's look at it this way...
Running a business is WORK. Sometimes that can leave you quite frazzled. Expenses, personnel issues, paperwork requirements, and- don't forget finding / keeping customers!
There are countless businesses out there. Some do well, while others fail. Whatever the product, whatever the service, the successful ones tend to have some things in common. Imitate & succeed.
Some claim there is some "secret" formula. Not true. Can another help you in areas where you lack competence? Sure- but you'll never take the "work" out of success.
Some folks are secretive about how they do things; I'm not sure why, as the 'secrets' invariable turn out to be stuff found in textbooks. Perhaps they're just not interested in having others question their choices.
For every "secrecy snob," there's a wildly successful, talkative person. This second group can't seem to stop writing about how they did it. Eddie Rickenbacker, Donald Trump, Sidney Biddle Barrows, Lee Iacocca... the list is endless. Read and learn.
As for the "Seminar Gurus," well... going to a seminar is sort of like going to church. You pay to hear someone extoll virtue- but never see THEM practice it! Maybe they do, but all you see is the show.