I couldn't understand how anyone could not use God's name after leaving the Watchtower. This was very difficult for me to grasp. However, in time, I naturally ceased using God's name in prayer.
Then I realized what happened. God waa not my friend. He was truly my father. You naturally don't use your parent's name when addressing them. Thus Jesus was introducing the father.
As far as God's name in the NT, I quickly learned why it was missing. Many times when quoting the OT, Paul applies scripture that was originally addressed to Yahweh, to Christ. Why? Simply because God wanted us to focus on Christ. Mark 9: 7: "A cloud came, overshadowing them, and a voice came out of the cloud, "This is my beloved Son. Listen to him."
I personally do not believe in the trinity. I now have drawn the conclusion for myself that Christ did not preexist. Thus, Jesus was the complete fullfillment of the "Logos" or master plan of John 1:1. That is why Paul applied the words of Romans: 14:11 to Christ. For it is written, "'As I live,' says the Lord, 'to me every knee will bow. Every tongue will confess to God.'" Basically, Jesus is the complete manifestation of God. . If we know Christ, we know God. 1 Corinthians: 2: 16: "For who has known the mind of the Lord, that he should instruct him?" But we have Christ's mind."