Be revealing. You don't have to be explicit, but it's important to reveal truths about yourself and your life in an autobiography. Don't let the book become a list of your accomplishments, with all the negative material carefully kept under the rug. Present yourself as a whole person, sharing talents and flaws alike, and your readers will be able to identify with you and hopefully root for you as they make their way through your story.
Choose something small, but memorable, like a chocolate, a cup of coffee, or a cookie – something indulgent but relatively guilt free. This tells the Unconscious that it’s okay to learn how to write your life story. There’s nothing threatening going on. And soon enough, your Unconscious will let go of its defenses and allow the memories keep flowing.
Why did the author choose to highlight certain events in their life in the memoir? Consider why the memoirist chose a certain section of their childhood or a specific life event as the focus of the book. For example, Didion’s book The Year of Magical Thinking focuses on the recent deaths of her husband and her daughter, while Nabokov’s Speak, Memory focuses on his childhood in Russia. One event is in the recent past while one event is in the very distant past. Yet both events have a very strong, and possibly traumatic, effect on the writers.
Show, don't tell. Engage your reader by showing them a specific process or scene, rather than narrate directly to them. For example, write a scene that shows the reader how you discovered your mother’s letters from her family in Poland after her death. This will give the reader key information to help move the story forward, without telling them in a long, uneventful passage.