Writing a diary has many benefits for writing. For details, you can refer to the following suggestions: 1. Training writing skills: Writing a diary can help practice writing skills such as grammar, rhetoric, and presentation skills. Through constant practice, you can improve your writing skills. 2. Increase creativity: Writing a diary can record your thoughts, feelings, and imagination to help cultivate creativity and thinking skills. When writing, he could draw inspiration from these thoughts and feelings to create more vivid and interesting stories and plots. 3. Cultivate narrative skills: Writing a diary can help practice narrative skills such as how to organize the story, how to describe the characters and scenes, etc. Through continuous practice, one could improve their narrative skills and make the story more vivid, clear, and convincing. 4. Source material: Writing a diary can record material from daily life such as people, events, scenes, etc. It helps to provide sufficient material for writing. These materials could be the raw materials for the story or background information for the writing. 5. Enhancing perseverance: Keeping a diary requires continuous writing and recording to help develop perseverance and patience. You may encounter setbacks and difficulties in the process of writing, but by persisting in writing a diary, you can overcome these difficulties and gradually improve your writing level. Therefore, keeping a diary is very important for writing. It helps to improve writing skills, creativity, narrative ability, material supply ability, perseverance and patience. It makes writing more interesting, vivid and convincing.