So it is in your head and you are going for it - set up your own karate business that is. However it is a new venture for you - you have never done it earlier and you need a helping hand, little by little to attain your objective. No worries we will cover all the support you will need.
Having your own business means you are no longer the one who takes the orders (or shouldn't be); by all means be a decent boss listen to your staff (if you have any), take note of their recommendations and think about the information they give to you. Now it's your job as the boss to collate this data and put plans into action..."failing to plan is planning to fail."
Be shrewd when running your own business - for definite you would like to make money, but not at all costs. What are the costs of business compared with just being an employee? You have more accountability to yourself, your family and workers if you have any - they are all dependent on you for their financial security. Scary! Operating your own business commonly means functioning longer hours and you may not make any cash from working those longer hours where in the past you may have got paid per hour/day. A guaranteed wage!
Although, of course, the money helps!
Were you one of those in education? Who's school report said..."This one will never amount to much!" What a feeling that would be to go back into your old school and say to your old teacher - "look I'm operating my own business now - how is the schooling going these days?"
Folk have different reasons for fitting into the mold of an an entrepreneur - we are not the same; and as such you will undoubtedly intend to do jobs in a more improved way than you have seen done by other bosses in previous jobs you have had.
Serious karate businesses are planned that way by people just like you. They make it because they plan to be successful, they take the resources to work out how they want their business to be; they prepare it that way and take extreme pleasure as their business and their life begins to fit their dreams.