Your life story, or autobiography, should contain the basic framework that any essay should have, with four basic elements. Begin with an introduction that includes a thesis statement, followed by a body containing at least several paragraphs, if not several chapters. To complete the autobiography, you'll need a strong conclusion, all the while crafting an interesting narrative with a theme.
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.