Pull out the best stories. The story of your entire life would start to get pretty long-winded, so you'll have to make some decisions about what anecdotes you're going to include. Begin drafting your manuscript by writing out the main stories that will be woven together to create a picture of your life. There are a few main topics that most autobiographies cover since readers find them fascinating.
For example, if you grew up on a farm, you know the difference between the smell of hay and wheat, and certainly that of pig manure and cow manure—because you had to shovel one or all of these at some point. City people probably don’t even know there is a difference. Describing the subtle differences of each and comparing the scents to other scents can help the reader imagine the situation more clearly.
Discuss any special circumstances such as obstacles or challenges you've faced, and how you've dealt with them, recommends Xavier University. This is especially important if your autobiography is for a college or scholarship application. For example, you might write about struggles you faced growing up in a multiracial family or how you've learned to live life to the fullest, despite being a diabetic. Your autobiography should be an honest representation of who you are, so avoid embellishments and exaggerations, suggests author and public speaker David Ford. The goal is to help readers understand how events, hardships and experiences have molded you into the person you are today.