I don't know how to manage the business, but I feel like some of the ways I hear in these five-six years are not really genuine. They are attractive, but the fee for joining the course is pretty expensive. However, some learners dropped after starting their business with that "method."
On the other hand, you've been teaching; owning your school more than ten years. I believe continuing the business is the most difficult part and you definitely keep doing it. Isn't that the real result?
If you feel you do not enough, it's not about the business, it's your hope and you compare between the present and the hope, I guess.
Am sorry if my words are not appropriate.