Huh? I quit my job. I buy a lawnmower (let us assume I planned that far ahead to save up enough money to buy a lawnmower). I knock on doors and say "Hey, I'll mow your lawn for ten dollars". I mow the damn lawns myself. I have a business. What's the problem here?
The "problem" is that you still need an employer. Calling yourself a business rather than an individual has not changed your situation. All you've done is exercise your capability to seek out other employers.