Exo 20:2-4 I am the LORD thy God, which have brought thee out of the land of Egypt, out of the house of bondage. Thou shalt have no other gods before me. Thou shalt not make unto thee any graven image, or any likeness of any thing that is in heaven above, or that is in the earth beneath, or that is in the water under the earth...
Rom 7:14 For we know that the law is spiritual: but I am carnal, sold under sin.
1Jn 3:2 Beloved, now are we the sons of God, and it doth not yet appear what we shall be: but we know that, when he shall appear, we shall be like him; for we shall see him as he is.
http://bible-truths.com/trinity.html has more info than exposing the trinity doctrine, in case you haven't read it or not in a while.
I personally wouldn't find too much fault in your current understanding, except as I would find in anybody's understanding--most especially my own--they are all incomplete and fall short of the Glory of God. So, since the law is Spiritual, don't be too quick to "make unto thee any (spiritual) graven images".
I would also commend you on mostly using Scriptural terms to describe your understanding. Since "...the words that I (Christ) speak unto you, they are spirit, and they are life...", all you have to do now is understand all Scripture spiritually.
I can't say for sure, because I don't know what is in YOUR spirit, but I believe you are moving forward.