First of all you need to know who you were following, this is what i have asked myself.
others here have ask it too, If their spiritual food is from Jehovah, then why is it wrong so often?
Jehovah is a perfect God who cannot lie, so why is he giving them false info? even if he gives it gradually it wouldn't be wrong.
Sept 2010 watchtower, Page 13 paragraph 8 says their food is From Jehovah
Dueteronomy 18: 21-22 tells how to spot a false prophet
in the" Reasoning from the Scriptures" book under the heading of false prophets they deliberately leave this scripture out of that whole section
why ? because it describes them.
there's a difference between advancing light and transforming light. the devil transforms himself into an angel of light.
They want you to follow them blindly, but the Bible incourages asking, seeking and testing with no reaproach from the most high.
try asking testing and seeking with them. you will be punished