Train yourself to use concrete details rather than abstract concepts. Take another leisurely look at what you've written. Highlight abstract phrases such as "I was afraid," or "we had a pleasant time." Replace these abstract words or phrases with something concrete, such as "my hands shook and my mouth felt stuffed with cotton" or "We drank Chardonnay on the Chatterley's sailboat, and as the sun set Rachel and I walked hand in hand along the boardwalk." Was it "a hot day," or was "the asphalt so hot that your flip flops stuck to the tar"? You might go back to the professional autobiographies you're reading and type out a few passages from the books for practice. If you're watching for it, doing so will focus your attention on the concrete. Most ordinary readers won't think about whether or not you've used abstract or concrete terms. They will know whether the writing is boring or interesting. Writing an autobiography with concrete specificity will only improve it.
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.
You can find examples of how to write an autobiography in the stories of sports figures, great religious leaders, government officials, doctors, railroad workers, singers and actors, along with ordinary people who found meaning in their lives. Choose a category or person that inspires you, and read several examples of how great life stories are shared with the public.
What's your story? Anyone who has lived a full life has something fascinating to share with the world. The trick to writing an autobiography is to treat it like any good story: it should have a protagonist (you), a central conflict, and a cast of fascinating characters to keep people engaged. You may want to think about a certain theme or idea that has been present in your daily life to revolve your story around. Read on to learn how to craft the story of your life and polish your writing to make it sing.