If you've been addicted to drugs, you've lived a selfish life in other ways. Maybe it's not drugs and alcohol. It could be a number of ways, right? Well, if you've done that, you can confess it as sin, ask the Lord to forgive you through his son, Jesus Christ, and then trust and believe and walk in newness of life because of what Christ has done for you, you're eternally secure. He's not going to abandon your soul.