It may help to identify the reading level of the ideal reader of your book. You can determine the reading level based on the grade level of your ideal reader. If you account for ESL readers, you should aim for a grade 6 or 7 reading level. If you are writing for a higher education audience, you may write at a grade 8 or 9 level. You can use the Hemingway app to determine the reading level of your draft, or other online reading level tools.
Determine the key actions and obstacles in your story. Once you have a sense of what desire or want you want to explore in your memoir, you can identify the actions and obstacles your narrator must overcome to achieve the desire line. Obstacles or challenges will give the story stakes and motivate your reader to keep turning the pages of your memoir. You are the driver of the action in your story and a story isn’t very exciting if it doesn’t have any driving action.