Second, slowly, take writing as a reward, so that he will feel that he has a chance to write only if he does well, so that he will be proud of it.
Third, limit the number or time of writing, beyond which you are not allowed to write. I can't watch my child love to write today. Let him write more. If he doesn't like to write tomorrow, he will write less. In doing so, the child's interest will be aroused first, and he will feel that this opportunity is hard-won, and it will be gone in the past. Second, it can cultivate children's good study habits.
Note: I don't have any children, so I can only speak in theory, and I have no practical experience to refer to, and I don't know the difficulty of actual implementation. I hope I can help you. In short, children's education is a persistent matter. We must persist and persist, and we must not give up because of difficulties.