"That if thou shalt confess with thy mouth the Lord Jesus, and shall believe in thine heart that God hath raised him from the
dead thou shalt be saved."
Romans 10:9
Believe and confess with your whole heart. Then he becomes part of you, all sin is forgiven. You just have to ask. He stands at the door knocking just open it.
He died for you and me so we may live.
Its the greatest thing you could do.