You can't rush the miles. No matter how fast I run, the five miles isn't going to be done in the first five minutes.
If you are under the illusion that you can start a business and run it at your life's schedule, you are mistaken. The business is like a starving puppy - when it needs to eat, then it needs to eat regardless of what you have going on personally.
Cash is the lifeblood of your business. There are very few things in business that will kill you, but running our of cash is one of those things. You can recover from almost any other mistake, but if you run out of cash you're dead.