As someone who has been through this struggle, I can certainly sympathize and attest that much prayers for discernment are needed as well as reading the Church Fathers. You certainly have my prayers for discernment.
Well this is a prayer thread I didn't want it to turn into a debate thread.
Well, you are saying on the one hand:
I don't know which is the true church and can't seem to discern my way through it, finding my convictions keep leaning one way and then another.
Which I understand. I was more like 60-40, maybe 70-30 one way or the other on some days. Other days, it seemed more like 50-50.
However I am 99.999% intellectually convinced that Rome teaches heresies/errors that invalidate her claims of supremacy and infallibility. And acknowledging these historical errors for the facts they are makes it feel like remaining in communion with Rome to be to live with cognitive dissonance.
But then you say this, which seems to indicate that you do know which one is the true Church. If you have decided for "fact" that Rome has taught heresy, I don't see any room for doubt which side you are on, or that you are open to discerning otherwise.
So in the end, it seems like there is a broader discussion you're looking to have outside of prayers. And perhaps that belongs in a different location.