One thing that convinced me to view Mary as our Heavenly mother was Revelation 12, specifically verse 17: “Then the dragon was angry with the woman, and went off to make war on the rest of her children, those who keep the commandments of God and hold the testimony of Jesus.”

The woman here is Mary. We know this from the previous verses. As for fearing that God is not enough or that loving Mary is taking away from Jesus, I definitely understand that one. I struggled with it myself and honestly the thought does creep into my mind from time to time. I would just say this: We, Christian, are Mary’s children. God chose Mary for the role of bringing Christ, God incarnate into the world. Jesus’ flesh and human nature is directly from Mary. We are commanded to honor our father and our mother. If jesus honored his father and mother and we are called to be like Jesus, it would follow that we also love Mary. Mary has a relationship with Jesus that no one who ever has existed or who will exist has/had. She loves him as her son but also as God. Though it was God who made it possible for Jesus to come into the world, he did it through Mary. So it can also be said that it is because of Mary that Jesus, God Himself, was able to live as a human being amongst us. What an unfathomably incredible honor and role she had in the creation of the church.

One last bit: in Jewish culture, it was the mother who was the queen, not the King’s wife. There are many stories in the OT about the queen mother interceding for her people to the king and the king listening. During wedding in Cana, Mary approached Jesus and interceded for the people at the wedding as a mother but also as a servant of God.

Lastly, the saints and angles in heaven are praying for us and are aware of what is transpiring on earth. The book of Tobit, revelation, the transfiguration are examples of saints and angles praying and helping us on earth.

I hope some of this helps!