There are many ways to prevent a novel from becoming childish. Here are some suggestions that might be useful: Read and write more: Reading a wide range of literary works, especially classic novels, helps to broaden your horizons and enrich your imagination. When writing, you can try to borrow the style and experience of other authors, but you must also create according to your own characteristics and preferences. 2. Pay attention to the plot design: The plot is the core of the novel. There must be enough suspense and conflict. At the same time, the character's personality and growth process must be taken into account to make the character more realistic and three-dimensional. 3. Pay attention to character shaping: characters are the soul of the novel. They need to have distinct personalities and characteristics so that readers can truly understand and feel their inner world. At the same time, he had to pay attention to the interactions and relationships between the characters to make their interactions more colorful. 4. Pay attention to the content of thoughts: The novel should not only have a plot and characters, but also have a certain content of thoughts that can convey certain information and values. When writing, he could think about how to express his thoughts and opinions through the novel so that the readers could benefit from it. 5. Avoiding the blind pursuit of novelty: When writing, you can appropriately draw on some novel writing techniques and structures, but you must also avoid blindly pursuing novelty and exaggeration to lose the original charm and content.