Welcome kjg132 -
I sense that you still want to serve our Creator, but some imperfect individuals are causing you to stumble.
Just remember what situation ones such as Peter, Andrew, James, & John must have been in prior to Christ's arrival - the falsehoods and injustices being dealt out by the religious leaders. They didn't abandon their faith or condemn openly what was going on - the Messiah would do that. They waited patiently for the one who would carry out a complete revealing of who was true and who was not. We are waiting now!! (1st Peter 4:17; 2 Thess. 2:4,8; Rev. ch. 2 & 3) These Scriptures guarantee what will take place, and to whom.
"Test the inspired expression" is a Biblical command - no man or group of men has any right to tell you you not to do so. At our District Convention, the speaker who got it wrong about Korah, said this, "If we doubt the Governing Body or any of their decisions, it could be viewed by Jehovah as disrespect for Him".
He also stated that "Jehovah's sole means of communication today is "the Faithful & Discreet Slave Class".
So the Holy Spirit is redundant now, is it? " But the helper, the holy spirit, which the Father will send in my name, that one will teach YOU all things and bring back to YOUR minds all the things I told YOU". (John 14:26)
Also, rememember Paul's words at Romans 4:7 - " For who makes you to differ from another? Indeed, what do you have that you did not receive? If, now, you did indeed receive [it], why do you boast as though you did not receive [it]?".
We should be very careful as to who we give praise and credit to, for our understanding of the Scriptures.