I am not the one to give you a tutorial on Mary. I was once like you, for many decades. I know a brick wall when I see one. I was one. It would be a waste of my time and yours.
Faith is a gift, and understanding a fruit of the Spirit, but the Church with Vatican II has itself rather shut out Mary as the hierarchy entertained infiltrators and heretics who were/are enemies of the Church.
I would not expect you to even stumble across any understanding on Mary. Many Catholics by now do not know her either, as the centuries of the faithful did, who came before them.
It is admittedly a great loss for all. The wolves have struck, to steal and destroy and buried plenty of knowledge.
I've read a great deal of roman catholic teachings on Mary. The overwhelming majority are false.
The catholic cannot point to anywhere in Scripture where mary is accorded the status of advocate, co-redemtrix or mediatrix.
Nor can the catholic point to Scripture that indicates we have to wear a piece of cloth to avoid the hell-fire as catholicism claims an apparition posing as Mary claimed.
I don't see a brick wall. I see false teachings in the roman catholic church on "mary".