Be especially careful in the middle part, because it's time to write about what happened. Pay attention to writing more passive things about yourself. As for your own mistakes, you will pass them by. Pay attention to small fossilization. If your mistake is obvious and can't be concealed, emphasize that you are passive or subconscious. Pay attention to both before and after editing.
3. The conclusion is to write your lessons, pay attention to them profoundly, and write your own innocence: although you have not made a big mistake, your education is profound ... Finally, you should link it with the construction of the motherland and write that you should study hard to build the motherland into a harmonious, prosperous and democratic socialist modern country (see the third volume of the Political Book).
This is my review mode, I hope I can help you!