There are many Catholic prayers to Mary and Saints, prayers that show how wrong it is.
Here is just one of many prayers to Mary:
Memorare
Remember, O most gracious Virgin Mary,
that never was it known that anyone,
who fled to your protection,
implored your help, or sought your intercession,
was left unaided.
Inspired by this confidence,
I fly to you, O Virgin of virgins my Mother.
To you do I come,
before you I stand, sinful and sorrowful.
O Mother of the Word incarnate,
despise not my petitions,
but in your clemency,
hear and answer me. Amen.
Sub tuum praesidium
We fly to Thy protection,
O Holy Mother of God;
Do; not despise our petitions
in our necessities,
but deliver us always
from all dangers,
O Glorious and Blessed Virgin. Amen.
Morning Consecration to Mary
My Queen, My Mother, I offer
myself entirely to thee.
And to show my devotion to thee,
I offer thee this day, my eyes,
my ears, my mouth, my heart,
my whole being without reserve.
Wherefore, good Mother, as I am thine own, keep me, guard me as thy property and possession.
Amen.
Some of the things the Catholics pray to Mary should only be said to Jesus.