This is plain language. The logic is as follows:
Word = God
The Word became flesh and dwelt amoung us. That means God became a man. John 1 also contains the statement that "the Word was with God". That means the Word that became flesh, that was God is the person of God before Jesus the man existed.
Your explanation contradicts verses where the Bible states that God is not a man that he should lie, nor the son of man that he should repent.
No man has seen God at any time. So...if Jesus was God then so one saw him?
Maybe John `1 doesn't quite mean what you have been told it does.
Latching onto that verse to prove your case opens the door to numerous contradictions.