You can start by explaining why Jesus repeatedly stated he was NOT God, that he gained his power from God, that he was the SON of God. While you claim Jesus is really God.
The relationship of the Trinity is a mystery that is simoultenaously very simple and very complex for the human mind to comprehend.
Jesus is the Word, and if you look in 1 John 1 it states that in the beginning there was the Word. That tells us that Jesus, the Son has always been around. The relationship of the Trinity is simple in the sense that we can understand the relationship of Father and Son, and subsequently Holy Spirit. It's complex in the sense that our finite human minds simply CANNOT fathom a being that is 3 beings in 1. It's one of those things that blows your mind, like Eternity.
Sidebar: Have you ever stopped to consider Eternity? Imagine a being, God, that always existed and will exist forever. Never having a beginning and never having an end. It blows my mind every timeI stop to think about it, which is fairly frequently.
To attempt to answer your question is that God explains the relationship of the Trinity in the way He did, which is Father, Son & Holy Ghost in a way that we, humans, can understand. However, He's ultimately more than that. The best explanation I've seen of the relationship of The Trinity was in Bill Maher's 'Religulous', here...
[ame="http://www.youtube.com/watch?v=6bjkj80B0fc"]Loved the explanation of the Holy Trinity. - YouTube[/ame]
Combined with that and the realization that God puts things in ways for us, as human beings, to understand should bring some clarity to you.
Hope that helps.