Have set routines for how you do business and you will have more efficiency, greater consistency, and less cock ups. And therefore be more profitable.
And the bonus will be your headspace will be freed up for creativity and developing the business.
You probably can’t cover every eventuality, but you can have a set process for 80%+ of what you do.
Then you can interrupt the default process to tailor your product or service when you want to.
Make the time investment – write the manual for how we do business here – and educate yourself and others.