There were a few aspects to consider when writing a novel that was only three years old in high school: 1. Story background and setting: You need to set an interesting story background and setting such as high school, class, classmates, teachers, etc., as well as the protagonist's personality characteristics, growth experience, etc. These elements could help the reader better understand the story and also lay the foundation for the subsequent plot development. 2. Plot: The story needs to have ups and downs, exciting parts, and warm and touching parts. He could consider setting up some conflicts and suspense so that the protagonist could constantly break through himself in his growth and exploration. At the same time, he needed to set some goals and pursuits for the protagonist so that the readers could understand the growth process of the protagonist. Character Creation: Character Creation is an important part of the novel. It requires setting some personality traits and behavior habits for the protagonist. At the same time, it also requires setting some interesting characteristics and plots for the supporting characters. It allowed the readers to better understand the characters and follow the growth of the main character. 4. Plot arrangement and rhythm: Plot arrangement and rhythm are important parts of novel creation. It is necessary to arrange the plot rhythm reasonably according to the background and setting of the story as well as the development of the story to make the story develop more naturally and smoothly. At the same time, he also needed to adjust the pace of the plot according to the readers 'reactions so that the readers could enjoy the story better. 5. Ending and sublimation: The ending of the novel should satisfy the readers and sublimate them. Through the growth and breakthrough of the characters, the climax and reversal of the plot, the readers could better understand the theme and emotions of the novel. These are the basic elements of writing a three-year high school novel. Of course, the specific creation still needs to be adjusted and improved according to personal preferences and story style. I hope the above answers will be helpful!