I have news fo you: us Catholics pray to the Lord God Almighty. I pray to Him every day.
According to the Catholic Cathechism, the Lord’s Prayer, given to us by Jesus Christ, is the foundation and starting point for all prayer.
In practice, when praying my own personal prayers, I start with the Our Father prayer. That is the KEY prayer in all of Christendom, because Christ Himself gave it as an example of proper prayer.
The Communion of Saints is a doctrine that all of God’s people are still with each other, although some of them are passed on to God’s Kingdom. The Catholic (and Orthodox, and Coptic and some Protestant Churches) feel it is just fine to ask them to pray with you, to join in your prayers. The Church feels that their prayers, added to your own, can help you.
The Church never teaches that they are substitutes for The Most Holy Trinity. They are servants and messengers of God who can assist you with your needs.
How do Mary and the saints listen to perhaps millions of prayers at the same time? Now that they are in heaven do they now have the attribute of omniscience? Because God has this attribute we know that he can hear and respond to millions of simultaneous prayers. But do Mary and the saints have this same ability?
How about the one you plant on your dashboard??? Do you pray directly to him for your safety, or for directions, or something like that???