I am afraid to enter the class tomorrow. What to do?

I pranked on a guy of my class accidently for which I even apologized. The said that it's fine. After reaching home, a few hours later he started disturbing me on text about the matter. I apologized once again and told him it was just a petty joke. Then he started using bad words and called me a slut. I took a screenshot and sent it to a strict teacher. The next day when I went to school everybody in the class was against me and supported him. When the teacher called me I explained him everything, when the fellow classmates were laughing on me and calling me a child because I was complaining. The class hates me but they support him. I even don't have any friends in the class and people are avoiding me. Now, they will abuse me in the class. I am in 11th standard. Now my whole class is against me. What to do?

I am afraid to enter the class tomorrow. What to do?
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