Which is pretty much the whole crux of the problem with purgatory. It chalks man's salvation up to his own abilities to save himself after the fact rather than to God's supreme power, judgement, and mercy.
balderdash. It does no such thing.
Prove it.
Cite the Catechism entry which Teaches we save ourselves after death, as you, falsely, charge
No. If one is in purgatory, then he won't be going to hell, that is, he is saved. There needs to be a purgation or purification before entering heaven. The souls in purgatory can do nothing for themselves.