What to write: Try to summarize your life in two or three sentences. Take your time. Think about your past. “But mostly think about who you are today and how you got that way,” says Roberta Temes, PhD, psychologist and author of How to Write a Memoir in 30 Days. “Maybe you want to focus on a certain relationship, maybe a certain theme...or maybe a feeling that has persisted for years.”
Develop a central theme, main idea or thesis that clearly explains the purpose behind your autobiography. For example, your theme might be about how you overcame obstacles to become a stronger person, or it might explain why a particular passion -- such as mountain climbing or rescuing animals -- is so important to you. Back your theme with details and background information about your life experiences. For example, you might explain that your dad is in the military, so you've had to learn how to adapt quickly to new schools and unfamiliar environments. Or, you might discuss what it was like growing up in a poor, single-parent home, but how your family was always willing to take in injured or stray pets.