It is normal. I think you should be a clever student. I have a deep understanding of this. When I was a child, I was copied by my deskmate, but my score was not as high as his, hehe. My experience is that smart people are quick-witted and quick-thinking, but their shortcoming is carelessness. In fact, this is a habit, that is, they usually can't fully consider the problem, do things, and don't grasp the details. This problem should start from the usual small things, always remind yourself to pay attention to this problem, and it will get better slowly. I believe you can do it well.