This book by Sherman Alexie draws on his life growing up on the Spokane Indian Reservation. In an award acceptance speech , Alexie said "The thing is, yes, the book is autobiographical. The book is my story. If I were to guess at the percentage, it would be about seventy-eight percent true. Rounding down. [...] One day I was in school on the reservation, and I opened up my math book and my mom’s name was written in it. My mom’s maiden name, so I was looking at a thirty-year-old math book. I have a temper. Years of pharmaceuticals and therapy have helped, but I had neither of those things back then, so... In real life, I picked up the math book, threw it across the room, and hit the wall. In the fictional version, I picked up the math book, threw it across the room, and hit the math teacher in the face. The fictional version is much more satisfying."
The proper way to get your own writing about yourself into Wikipedia if you really think that you can meet the inclusion criteria and are willing to accept having a neutral, non-promotional article, is to make a proposal at Articles for creation containing the text you want, instead of just putting it into the encyclopedia directly, and seek the consensus of the community through discussion. Not only does this provide independent viewpoints on it that can allow you to discover biases you were not aware of having, it also helps provide an indication of good faith and that you are willing to put the interests of Wikipedia first instead of standing in a conflict of interest .