For decades, business plans have been created for a sole purpose: to get a loan from a bank.

Sure, you were expected to do your due diligence,  figure out your marketing plan and your overhead costs, but really, it came down to convincing a banker to give you money. That's why an old-fashioned business plan is useless for would-be business owners, because without the original purpose (pleaseohpleaseohprettyplease givemesomemoney) those old-fashioned templates focus on the wrong things. 

You probably started your business for what some would say are foolish reasons. You're expressing your artistic side. You're serving a need. Your business is an expression of who you are, and how you want to be in the world. 

A business like that is one that supports you, one that complements the life you want to lead and doesn't force you to choose between making money and being happy.