Write what you know = Write what interests you = A story that will make your creative juices flow.
Whether it’s a romance or a hard hitting action movie, if it’s not something that interests you or something that you wouldn’t want to watch yourself. Why write it?
Write, write, write and keep writing.
Get those outlines written and get those first drafts written as quickly as possible.
The real writing happens when you start those rewrites.
Here's where the fun begins.
Star Wars (1977)
Working on a number of projects will also help if you suffer from writer's block. Or you get stuck, lost on a project or have no idea where to take the story or a character.
You can put your energy into the other project or projects you have on the boil. While doing this, you'll give yourself some breathing space to meander and reflect on what course of action to take and which direction to take your story.