When writing a book of any type (fiction or nonfiction) you often bring your own experiences to bear, sometimes consciously and sometimes subconsciously. What I am talking about today is to intentionally and consciously use your experiences.
In the game of writing you control the game. You have little control over sales, but you have great control over the writing and publishing of your book. And there are ways and means of marketing your book available. If you have all the talent in the world and all the skills but never seize the opportunity you are guaranteeing failure. Permanent failure. On the other hand you have unlimited opportunity available to you every day!