Tbf, while I'll definitely change my belief with different evidence (and maybe even reason alone), I'm not sure what that evidence or reason could possibly be.
Whatever it is though, an omniscient god should have no problem with that or just snapping it's "finger" and making me feel the same way as the post. That's probably the easiest way to convince me.
That said, I'm a little bit too old for the onset of schizophrenia, but if I start behaving like the post, I request you take me to a hospital.
The excuse for that is always a very convenient "God gave us free will, so you're free not to believe. But sorry, you're going to go to hell for exercising that free will."
Why would I worship a being that gives me freedom then demands I don't use it?