Seem we have to atone our sins ourselves as per Ezekiel 18?

First of all, the source: > Ezekiel 18:4 (GNT): The life of every person belongs to me, the life of the parent as well as that of the child. The person who sins is the one who will die. God states clearly that even if there is someone willing to die for my sins (or settle on my behalf), still not possible due to God's method of settling the issue of sin. IF this is the case, Jesus die for nothing? His death doesn't settle anything for the wicked...