From the depths of despair, the psalmist cries out to a God who not only hears but forgives, because if God kept a record of sins, no one could stand. We don't get right with God by cleaning ourselves up, but by trusting Jesus, who takes our filthy garment and gives us His own righteousness. Put your hope in the Lord, not in yourself, He Himself redeems. Pray to receive that redemption, then tell someone.