Whether you use the first or third person when writing a novel depends on the message you want to convey and the story style. The first person usually makes it easier for the reader to enter the story because the author can interact directly with the reader to describe the protagonist's experiences and feelings. This way, the readers could better understand the protagonist's psychology and actions while making the story more realistic and intimate. But writing in the first person may make the story seem lacking in depth because the author is unable to think or describe the story from a deeper perspective. Third-person characters were usually better at showing complex plots and character relationships while providing more perspective and thinking. This way, the readers can better understand the background of the story and the experiences of others, and it can also make the story more objective and calm. But writing in the third person can also distract the reader from fully immersing themselves in the story. Therefore, when writing a novel, you should decide whether to use the first or third person based on the story and the message you want to convey. If you want to create a more realistic and intimate story, you can consider using the first person; if you want to create a more objective and calm story, you can consider using the third person.