Short answer: If you don’t understand where you’ve been, you may not know why you’re here.
There is no one else like you. Your writing style, genre, themes, character creation, morals or lack of, are a reflection of your life. Which events had the most impact? Why do these particular memories stand out? What did you learn, lose or gain?
The answers to these questions may be your “Aha Moment” were you emerge making more sense to yourself and to your readers.