Don't fall into the trap of having to have everything perfect to write or wait until the mood strikes you. If you want it as a job, treat it like a job, and just as you don't go to work only when you feel like it, you have to condition yourself to sit and write even when the ideas don't flow.
Kim HarrisonA witch, a vampire, and a pixy walk into a bar, I thought as I led the way into the Squirrel’s End. It was early, and the sun had yet to set when the door swung shut behind Jenks, sealing us in the warm air smelling faintly of smoke. Immediately Nick yanked it open to come in behind us. And there’s the punch line.
Kim Harrison