It might be tempting to start your story with "I was born in Dayton, Ohio...," but that is not really where your story begins. It's better to start with an experience. You may wish to start with something like why you were born where you were and how your family's experience led to your birth. If your narrative centers more around a pivotal moment in your life, give the reader a glimpse into that moment. Think about how your favorite movie or novel begins, and look for inspiration from other stories when thinking about how to start your own.
I have lead a very full and sometimes complicated life. I have worked in many different vocations and participated in most all of the arts. I have been ask probably 100s of times why I don’t write a book about my life and or experiences. I realize that aspects of my life are things that should maybe written down for prosperity, but when I begin to think about what to write about, or what area to write about, I am bewildered. To fully write my life would take me volumes of words. I can remember from the age of two until now and yesterday I turned 76. At times I think of things that I think are important, but then other times I think of dozens of things are important. Many of my learned friends call “The Renaissance Man”. I am at a loss.
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.
Incorporate dialogue into your autobiography to make it more personal, recommends history professor Robert Gerlich at Loyola University in New Orleans. Consider including humor when it's appropriate. For example, if you're writing about how you got lost at Disneyland when you were 10 years old and how the experience helped you learn to face obstacles, problem solve and overcome your fears, you might write, "The attendant at Splash Mountain said, 'Are you OK? Did you get separated from your family?' I quickly replied with as much bravado as I could muster, 'Nah, I'm fine. My eyes are just wet from the ride.' I didn't want her to know I was crying."