I am writing a book. (Updated)
Write what you would like to read.
The best writing advice I have every had is: “Write what you would like to read.” I seem to violate all other writing suggestions but still I am making considerable progress. I am at 55,000 words and finished with my first draft which took six weeks. And I have a list of items to repair and change in the second draft. The best day was 5,000 words.