It's never to late Mark. Never,ever to late. Ask God for forgiveness,and God will accept you. That's why He sent Jesus to be a sacrifice for our sins. Now He's risen,and sits at the right hand of God,and makes intersessions for us.
That means you Mark. He sent Jesus to die for your sins,and mine.

You are carrying a burden of guilt. Put it down at the cross of Jesus,and ask him to save you. It's never to late. BF