For the first part, you think of ten words that start with the same letter as the first letter in your name. Write the list of words down. This is the pre-writing part of the writing prompt.
My name starts with the letter "j" so I need to think of ten words that start with the letter "j." Let's see. I think I would write down: jump, joyful, jab, jet, jazz, jumprope, jog, just, jellyfish, and jack-o-lantern. Then, the idea would be for me to try to write a story using as many of these words as possible.
Good luck! And, most of all, have fun with it!