I run into children and adults who want to create stories.
Every story needs a main character.
Take your main character and give him or her a goal. They must want something, want to accomplish something or have some internal need that must be met. Then provide a solution to the problem and a happy ending. The process can be summed up even simpler. Someone once said that in every good story what you must do is get your main character up a tree, then throw rocks at him, and then get him down.