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.
Create an outline or a graphic organizer of the major topics and ideas you want to cover. For example, you might make a time-order chart -- a chart with event blocks to organize events chronologically. Or, you might draw a cluster web -- a diagram with connected circles -- to divide your autobiography into sections, such as one for relevant background information, one for life-changing events, one for special memories and one for goals and dreams. Focus on reasons why specific events, situations and circumstances were important to you and how they made you feel.