Actually the whole point of the Nicene Creed was there were two main thoughts in Christianity and a definite split between the two groups. One was that Jesus was not God the Father but like the Bible says a "man appointed by God, etc." The man who called the First council of Nicaea really didn't know anything about Christianity but thought that it would be easier to just accept the later, and thus that was the direction the "church" took for the next 1500 years. Interesting a man who wasn't even a Christian decided the fate of the church for the next millenia. Actually, this was probably about the time the Roman Catholic church dominated and Christianity was pretty much state-run, which is usually not a good thing.
Just as people in mainstream Judaism, (Pharisees and Sadducees) distorted the Truth, so do those in mainstream Christianity. They persecuted Christ and they will persecute you too. The reason the Spirit of the Lord is working so mightily in China and places like India is because these people don't have preconceived ideas about God but just love the Lord with all their heart. He who has ears to hear let him hear.
Go to God in prayer and ask Him to show you the truth and not just what you have been taught.
God bless,
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