Jasmine Cresswell — American Author

Jasmine Rosemary Cresswell is a best-selling author of over 50 romance novels as Jasmine Cresswell and Jasmine Craig... (wikipedia)

I think you have to have a publishing house that offers you some support.
Of course I planned to write the Great American Novel; that lasted about a week, at which point I decided I had nothing to say that could possibly qualify. So I wrote a romance instead.