How to write a critical letter without endorsement

I am ashamed of the mistake I made this time. I really shouldn't ignore what the teacher said. I shouldn't go against what the teacher said. As students, we should listen to the teacher completely, but this time I didn't pay much attention to what the teacher said. I feel very sorry. I hope the teacher can forgive my mistake. My confession this time is really profound.

During the holiday on New Year's Day (xxx), I didn't recite carefully and didn't finish the Chinese homework assigned by the teacher on time. Here, I make a profound examination to my teacher and my parents. First, check the reasons for not endorsing. One of the reasons. After the holiday, the depression caused by my intense study was finally fully released. I thought: The holiday is still so long, and there is still time to recite this book. So, I play wholeheartedly. Immersed in the knowledge ocean of computer network, chatting with classmates and netizens and watching interesting things, I can't extricate myself. During this period, my parents were also busy with their work and didn't take care of me much. I even let myself go, I was at a loss on this wrong road, and I was going to class tomorrow, and I didn't recite any articles. The second reason is. I'm not very interested in Chinese learning at ordinary times, so I don't like it very much. Faced with so much homework, I almost fainted, which made me feel great fear of difficulties. I thought, instead of being so sad, I might as well concentrate on math and English classes. So, I spent most of my time writing handwritten English newspapers. I have speeded up and saved half a day. However, the study of Chinese has been neglected. Some students reminded me not to be partial to subjects, but I still have no interest in Chinese and go my own way. I feel that learning Chinese well seems to be of little significance, so I have relaxed my self-demand for Chinese learning. The reason is that I don't regard learning as my first priority, that is, I don't have a correct view of learning and I don't regard myself as the pillar of the future motherland. This lesson is profound. Through my reflection, I realized my serious mistake. I am still a middle school student, so it is extremely wrong to treat learning like this. I can't be partial, willful, live up to the ardent expectations of teachers and parents, and live up to the expectations of the country. From today on, I will completely change myself, and I will never let my teachers and parents worry about me again. I will actively complete all kinds of homework assigned by my teachers, and I will seize the time to make up the missed courses. I want to get rid of the bad habit of being playful, use computer network correctly to improve my academic performance, correctly handle the relationship between study and participation in community activities, and correctly grasp the balance and impartiality of all subjects. At the same time, I also promised my teacher that I would consciously abide by various rules and regulations and classroom discipline, and learn from my good classmates with an open mind.

Finally, please take the time to review your own review. After submitting this comment, I am being tested by my teacher ... I fully understand the pain of my teacher's education now ... I am really sorry for this. I hope the teacher can forgive me and recognize my attitude of admitting mistakes. I really deeply reflected on my mistakes. I hope the teacher will give me another chance to correct my mistake. I also hope that my classmates will take a warning and don't make the same stupid mistake as me. This time, the lesson is really great.