Cyber-Bullied

What should I do? I only did one thing wrong but why the consequence was so bad? I’m cheat at my English dictation. One of my classmates knows it but he wasn’t told teacher immediately. After school, he sends me a message said that if I did not give him money he will told teacher. I felt stressful but I did not want him to tell anybody whatever teachers, friends, parents or strangers. So, i had given him some money. Yesterday, he asked me to him money again otherwise he will told teacher about my cheat work. I’m annoyed of it because I have not much money. I’m also frightened to give much money for much time when he threatens me to do so. Today, he came with me and threatens me for money. I had told him I already give all the money to him but he doesn’t stop threaten. Oppositely, he started to humiliate me and also my family. He said if I can not give him money than he will post my cheat work to all of teachers, schoolmates and my parents. Who can help me? What Should I do?

What should I do? I only did one thing wrong but why the consequence was so bad? I’m cheat at my English dictation. One of my classmates knows it but he wasn’t told teacher immediately. After school, he sends me a message said that if I did not give him money he will told teacher. I felt stressful but I did not want him to tell anybody whatever teachers, friends, parents or strangers. So, i had given him some money. Yesterday, he asked me to him money again otherwise he will told teacher about my cheat work. I’m annoyed of it because I have not much money. I’m also frightened to give much money for much time when he threatens me to do so. Today, he came with me and threatens me for money. I had told him I already give all the money to him but he doesn’t stop threaten. Oppositely, he started to humiliate me and also my family. He said if I can not give him money than he will post my cheat work to all of teachers, schoolmates and my parents. Who can help me? What Should I do?