A girl talked shit about me on the High School Tea Page, what do I do?

I am a teenager, and I'm extremely stressed out. So, I decided to follow the school page for a joke, to see what people say and the first thing I see is about me...

A girl talked shit about me on the High School Tea Page, what do I do?

This is what the person said about me.

Now, this really made me upset and I don't know what to do. I'm honestly over the initial shock but it really upset me because I know who wrote it about me but I've never exactly talked to the person in such a manner.

Advice?

A girl talked shit about me on the High School Tea Page, what do I do?
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