Write a Memoir

A memoir is not an autobiography. An autobiography is the story of an entire life, but a memoir is just one story in that life. A memoir is about handing over your life to someone and saying "This is what I went through, this is who I am, and maybe you can learn something from it."
Writing about your life is also coming to a fresh understanding of it at an age when you probably think you know yourself pretty well.
There are many different types of memoirs- you can write about your childhood, you can write about places you've visited. You can write about a crime or an injustice you have encountered. You can write a memoir about anything, no matter how small or seemingly inconsequential. Everybody has stories shelved in his or her subconscious, awaiting translation. The challenge is getting started. Hand over your life and tell someone!