If you are ever asked to write about yourself, you may wish to follow some of these guidelines.
First, an autobiographical story is like any other story you've read. What are the tricks that make the best short stories come to life?
1. All stories have a point, whether it is merely to entertain, to reveal something about a certain character, or to reveal something about the human condition. Your story should have a point: to reveal the ambiguous/good/bad nature of yourself. Thus, you are a character in your story. You may write about yourself in first or third person.
2. All stories have a plot, and thus, follow the basic plot points of exposition (introduction), conflict, crisis, climax and resolution. Know what these terms mean and include them in your story.
3. All good stories should show rather than tell. Don't simply tell me that a character is selfish. Show me the details of that selfishness. "He saw the last Oreo in the box and took it, leaving the plastic wrap behind as he walked away grinning, brown and creme flakes falling off his lips and chin." Reveal character and setting this way.
4. Be subtle rather than overt. Don't write about monumental conflicts in dramatic language. Write about the human, everyday conflicts that we all know intimately. Don't use overblown language. Use specific diction to create a certain tone. Don't write: "He blew up at his brother, screaming at the top of his lungs while hitting him in the face with his fists of steel." Do: "He looked at the smirking face of his brother, sitting in front of the television, legs slumped over the armchair, and said, "Did you eat the last cookie?"
5. You may have several crises -- points at which the story turns and where the conflict worsens. Your final climax doesn't have to be overdrawn. A simple internal realization (symbolized by action rather than overtly stated) often is enough.
6. Your resolution doesn't have to tie up all the loose ends -- just the primary one (though you can tie up all or most of them if you wish). Sometimes, having a slightly unresolved resolution can be satisfying -- like a movie where you wonder if the monster is truly dead.
7. Use: dialogue, description, setting, characterization, active verbs, specific & concrete nouns. Avoid passive voice, passive verbs, vague and general nouns, too many adverbs and adjectives, convoluted plots, and plots with no conflict, climax or resolution.
Don't write: "There were a lot of things he was afraid of." Write: "Centipedes, cobwebs, tsunamis, dense foliage and high pitched screeches haunted his nightmares, turning him in his bed each night like a catfish on a griddle."