First you must believe that Jesus Christ, the literal Son of God, died on the cross for EVERYONE'S sings, including your own.
We have all sinned. Romans 3:23 "For all have sinned, and fallen short of the glory of God." You must know that only he is your way out. John 14:6 - "Jesus Said,' I am the way the truth and the life, no one comes to the father except by me.'"
He rose again "Christ died for our sins according to the scriptures; And that he was buried, and that he rose again the third day according to the scriptures" 1 Corinthians 15:3-4