Your tutor read your paper and suggested revising the data, indicating that the paper has opinions but no basis. Even if there are thousands of reasons, I'm afraid it's hard to hold water. You might as well search the relevant literature in www.cnki.net or Wanfang database to see if there are any similar data, borrow it temporarily, make a mark, or collect the data extensively, summarize the analogy, and form your own data, so as to improve your point of view.
There is a good saying that different people have different opinions. Although plagiarism or other misconduct in academic research is taboo, it doesn't mean that we can't learn from other people's data. Everyone makes mistakes. Maybe someone else's analysis of the original data has loopholes and made important discoveries.
Since the degree certificate and diploma are related to your life-work, it is better to have a snack, improve your thesis, and let yourself, classmates and teachers ask more questions about your thesis so as to respond flexibly in the later defense process.
Teacher Hua from the School of Sports Science and Technology of Wuhan Institute of Physical Education will help you answer. If you have any questions, please continue.