Forget the boring old dictum, 'Write about what you know.' Instead, seek out an unknown yet knowable area of experience that's going to enhance your understanding of the world and write about that.
Rose TremainPace is crucial. Fine writing isn't enough. Writing students can be great at producing a single page of well-crafted prose; what they sometimes lack is the ability to take the reader on a journey, with all the changes of terrain, speed and mood that a long journey involves. Again, I find that looking at films can help. Most novels will want to move close, linger, move back, move on, in pretty cinematic ways.
Rose TremainLearn from cinema. Be economic with descriptions. Sort out the telling detail from the lifeless one. Write dialogue that people would actually speak.
Rose TremainNever be satisfied with a first draft. In fact, never be satisfied with your own stuff at all, until you're certain it's as good as your finite powers can enable it to be.
Rose Tremain