I'm also a teacher at Normal University. When chatting with us, the tutor told us that if the paper failed, it would have to wait until next year.

You can ask other teachers and students to help you with the shortcomings in the paper.

Your tutor shouldn't directly tell the teacher in your thesis defense group that you can't pass the exam, but there should be several signatures in the final portfolio of the thesis.

You just send something to the teacher after school, and he says something nice, so there's nothing you can do. People have to bow their heads under the eaves and have a better attitude. Maybe he will let you go.