Don't. :)

Seriously... Free-lancing is harder work than any job you've ever had. You have to be able to handle the work you take on as well as doing the accounting and bringing in the sales. It's just not feasible for most people without really working your ass off.

And then what do you get? You certainly don't have a business, because it's unsellable as such, and it doesn't exist if you walk away. What you have is the most time-consuming job possible. You didn't even get rid of your boss... In fact now you've got more bosses.

Speaking from almost a decade of freelance experience, I'd suggest you either get some partners or get a job.