I Have Been Crucified With Christ means that God was disappointed in me and also that I have despaired of myself too.
God had Seen me Through and Through.
He Knew that I had neither usefulness nor hope.
So I too have Reckoned myself as hopeless and confessed that I could never please God.
There is nothing God can do but to Put me to Death.
All who are in the flesh have absolutely no hope and are therefore worthy of Death.