Why MY own words?
You made a claim about what the Catholic Church does (how she regards Mary).
I'm showing you, in the words of the Catholic Church, that you are completely wrong:
And the Catholic Church regards her, not as God does (a sinner who also required a Substitutionary Saviour), but as a deified individual.False (see the Catechism paragraphs quoted above).
All right, we’ll open the question up to any Catholic:
Did Mary, who gave birth to the Savior in Bethlehem, require that Savior to shed His own Blood for HER sins?