The "false gospel" (as you call it) that I believe in is the gospel of Jesus Christ. I believe the truth and the true gospel which is the gospel that Jesus Christ received from God and was sent to preach, the gospel that Jesus himself preached, that was to go to every creature in all the nation's, the same gospel that Paul himself believed in, followed and preached.
What I don't do is see the gospel that Jesus preached as for others and not for me, and only believe in what is said by one of his apostles, I believe in the teachings of Paul. But Jesus comes first, I believe him first and foremost and I follow him, not Paul.
And even Paul himself said "follow me as I follow Christ"
And Jesus said, deny yourself, take up your cross daily, and follow me, and he said that those who don't take up their cross and follow me, are not worthy of me. And I believe that is the truth and I follow him, not the doctrine of any denomination!
You see me as unteachable, but I see your doctrine as not being the truth.