I always think of my friends' mockery. What should I do if I have low self-esteem and care about what other people think?

Because I was inferior in terms of education, my first degree was rubbish, so I worked hard to study for the postgraduate entrance exam, just so that I wouldn't let someone else put me down and so that I wouldn't be so miserable.

But in the end, all my relatives and friends except me passed the postgraduate entrance exam. My friends unabashedly mocked me, saying things like "You're not as good as me" and "You don't have any certificates".

She is afraid that I will surpass her, so whenever I make even the slightest effort, she verbally attacks me and always brings up my shortcomings, making me feel inferior (she says she is confident that I will surpass her in this respect).

She and her friends also talk badly about me, and every time we hang out together, someone will disagree with me, and she will laugh out loud... We have a lot of mutual friends

My only advantage is that I look better than her. She can't stand me and has been trying to suppress me for more than ten years. Whenever someone praises me, she gets upset.

It's getting more and more painful for me to be with her.

When I couldn't pass my driving test, she put pressure on me, saying that there was something wrong with the test venue, that the examiner was very mean, and that it was very difficult to pass. When I wanted to take the postgraduate entrance exam, she said I couldn't.

She immediately poured cold water on me when I took the civil service exam. Whenever I bought something, she would buy something better and then ask me if mine was better than hers...

The more I think about what she did to me, the more disgusted I get, and I decide not to contact her. But her mocking words always come to mind, and I feel inferior and cry in pain. How can I make her disappear from my world... My parents know each other, they have a lot of mutual friends, and she is very popular.