We like to think we have a saving grace - but - do we ? Yes and No ! We have it but its not in us ...its Jesus and His Righteousness extended and forwarded to our account.
We need to realize that although we are called crazy to believe in Jesus - there is plenty of objective evidence to prove our faith. But The faith is slandered as a straw man is set up to be knocked down representing the Gospel. That Is Crazy !
We deal with shame in many ways - mostly we forget about it - but it often comes back at us. God uses all things to draw us to Him, including shame - our screwups, our sin, our evil...
We are overwhelmed in life and find that its too hard to go on sometimes. Yet there is hope ! Life is in some ways a puzzle to solve. Once its solved your life is resolved.