Once you have taken a look at your own life from an outsider’s point of view, you will be able to select the most interesting elements from your notes to establish a theme. What was the most interesting thing you came up with in your research? Was it the history of your family and your region? Here is an example of how you can turn that into a theme:
The autobiography is the longest and the fullest story about yourself. You can write it for your personal use in order to structure and perpetuate your memories. If you are sure that your life will be an interesting theme to read about, you may create an autobiography for the wider public. An autobiography covers the period from the day of your birth until today. If you think that your life journey will be a good example for others, include the information on how you have achieved your goals and success and how you got your autobiography published.
The consequence(s): Ask yourself, What disaster will happen if the goal is not achieved? What is my protagonist afraid will happen if she doesn’t achieve the goal or solve the problem? The consequence is the negative situation or event that will result if the goal is not achieved. The combination of goal and consequence creates the main dramatic tension in your plot. It’s what makes the plot meaningful.
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.