As a student in school, taking part-time jobs on leave can not only enrich social experience, but also earn a certain amount of economic income, which is commendable. It may be that you have no work experience, and you can't make mistakes in your work. Even if there are no mistakes, you may not be very skilled. This is normal, and your supervisor may be too poor. You should also understand that you can communicate with her at the right time. I think she may be able to change her attitude towards you. At the same time, I hope you can get familiar with the business as soon as possible, improve your business level and change her view of you.

as for the practice of giving her bad reviews in the future, it is not appropriate to return evil for evil.