After the paper is completed, it usually needs to be revised several times to meet the requirements. The revision process usually includes self-revision and tutor's repair.

Make your own corrections. Note that it will take a day or two, and it is easy to find problems. If you revise it immediately after writing, you may miss the question because of your thinking inertia. Read through the full text, check whether there is any problem with the format and logic, and see if the argument can convince you.