I think perhaps you are not understanding what creeds are.
Perhaps this will help. Regarding your faith and salvation does what you believe matter? Does your belief of who Christ is matter?
To an extent, yes and to an extent no.
I doubt many of those in the NT early church or those to whom Jesus taught and preached and healed, had a clear understanding of who He was. And yet their faith in Him saved them, according to HIS own words in Scripture.
Not only that, no human being is perfectly capable of perfectly understanding who Jesus is and was.
The criteria is that you believe the Jesus of the NT. Any other Jesus can't save.
For example, this could open a can of worms, but the Mormon Jesus is not the Jesus presented in Scripture. Putting faith in that one, cannot save. If someone knowingly puts their trust in that Jesus, the half-brother of Lucifer (Satan), that Jesus cannot save because that is not the Jesus presented in Scripture.
So, just because some group of men get together and explain what they think Jesus is the best they can express it, doesn't mean they're right.
So, I'll trust in the Jesus of Scripture. If someone wants to trust in the Jesus of the creeds, they are free to do so, but should not be surprised if it doesn't turn out so well in the end.