There were many factors to consider when writing a fantasy novel, such as worldview, magic, myths, and so on. Here are some suggestions that might be useful: 1. Confirm the world view of the fantasy novel. This world view should have a clear structure, including the origin of the world, various races and forces, magic and mythological elements, and so on. 2. Decide on the protagonist and storyline. The protagonist should be the core of the story. He (or she) should have a unique personality and experience that can form a strong interaction with other characters. The storyline should have a clear goal and a high and low point. 3. Consider magic and mythological elements. In fantasy novels, magic and mythology were very important elements. They could build a unique worldview. You need to study these elements and determine how they interact with the worldview and storyline. 4. Study other successful fantasy novels. Reading these novels can help you understand popular plots and elements and how to build an attractive protagonist and storyline. Create a unique character and worldview. You need to create a unique character and worldview to make it stand out. You can achieve this by creating a unique personality, background, and experience. 6. Continuous modification and improvement. Writing a novel was a long process that required constant revision and improvement. You may need to read and revise many times until you are satisfied. I hope these suggestions can help you start writing a fantasy novel!