Can't reply since he blocked replies, but you very much CAN convince yourself of something and argue with yourself and that is only with basic human limitations, God is 3 persons who are one entity, God.
It’s illogical to say that the one true God is a mediator with HIMSELF, because mediation inherently requires at least three distinct entities: the one who mediates, the one being mediated for, and the one being mediated with. Therefore, Jesus cannot be the one true God.