First you would determine what you would like your salary to be. You've dreamed about having a nice income to support your dreams I'm sure. Let's say right now you only make what your profit is giving you which might not be much. So let's say the first year, next year, you would love to have a consistent monthly salary of Ŭꯠ a month, every month. And every year you would like to be able to increase it so that after 10 years it would be at บꯠ per month. And let's say you would like to grow your business 10% each year.
But do not be too paranoid, make sure you are showing it to people you trust, whose feedback you welcome and can be genuinely useful in guiding how the plan takes shape. Very often when working as individuals we get very close to certain details and miss out a big thing that has slipped your mind. You can concentrate so much on essential financials and supply logistics, but overlook other issues like marketing or opening times. By showing the plan to someone you trust, they can have a look and see what might be missing or worth developing more. Getting that valuable second opinion on how robust your idea is will put you in a much better position to start and keep going successfully.