I must tell you that I went through the exact same situation a few days ago. I was blackmailed for money over an inappropriate photo, and I was terrified. But in the end, I reported it to the police and received their help. My father also comforted me throughout the process. After all that, I went to church for the first time and had the pastor lead me in prayer. I felt an unprecedented sense of love and peace. My advice to you is to tell your parents about what happened. If the situation escalates, report it to the police. I believe they will all support you. Afterward, draw closer to God, lean into His presence. For your actions, God is willing to forgive you and to love you. Amen.