You hang an awful lot of weight on that peg. Specifically the "My God" peg, when Jesus utters this phrase. You think that this term alone supports your case, which is otherwise just plainly bonkers. Obviously a Man Who said, "30* The Father and I are one.”r " PLUS Who raised the dead, walked on water, and commanded storms and they obeyed, is entirely consistent with the ancient Christian tradition that He is God, which is an aspect of the Trinity (the teaching).
The teaching is Apostolic. All the Scripture which isn't ambiguous clearly supports the tradition.
You're hanging way too much on that peg.