Keep your eyes on Jesus, he is the only one that died on the cross for your salvation. Read the bible and pray to God in Jesus name, also read Psalm 91 everyday in the book of Psalms in the Old Testament for your safety and strength in Christ.
Lord help this child of yours gain strength in you and not look back anymore, even help them to cut all relations with those people. Once they mature enough in you they can always testify to them and bring them out of that darkness. i pray in the only name most powerful here and in the universe Jesus Christ. Amen!