We don't write essays for students at eNotes, but I can help you with some suggestions for a topic. Think about something in your past that has happened to you or you have done that you would really like to forget ever happened. Do you have an embarrassing moment where you wanted to disappear? Perhaps someone else did something to you that caused you great embarrassment or discomfort. This type of essay can be humorous or serious, depending on the circumstances. Basically, just stop and think about a time in your life that you wish had never occurred and write about it. Remember, you're telling a story, so you want it to be interesting. Start it with a hook that immediately grabs the reader's attention. Every good story has a good beginning, middle, and an ending that flows smoothly from one stage of the story to the next.
I hope this helps. If you have further or more specific questions, please don't hesitate to ask.
I won't be popular for saying this, but.... I would like to forget Lord of the Flies. I read it when I was in eighth grade. After that year of school, I swore off reading altogether, thinking to myself, "If this is what all literature books are like, I never want to read another book as long as I live." I was so depressed and distressed by the book that I remember I had nightmares. Eventually, several years later, I forced by a friend to visit a library one summer and ran across Dr. Zhivago by Boris Pasternak. Here was a book--that I didn't understand all of, by the way--that was filled with beautiful language, deep human emotion, universal ideas and characters that were as real as the people across the street. That led to my discovery of Thomas Wolfe's Look Homeward Angel, most of which I didn't understand, and then Leo Tolstoy's War and Peace, none of which I understood, but I did find the greatness in literature that is written by large intellects about all aspects of the human condition expressed with unwavering faithfulness to true expression of human personality, cognition and feeling, with nothing contrived, artificial or inhuman in the characters.
Are you talking about a story that we have read, or a story in our pasts? I am not sure about either one. I don't remember any stories I had read in school other than the ones we go over in class.