As long as you are confident in that, Mary, that's all that i was saying. As long as your not abiding by Catholic dogma because of their perceived longevity, or the size of congregation, or whatever other superficial reason. As long as you believe, for the right reasons, that God has chosen them as such, then I agree with your conviction, one cannot go beyond their own comprehension, and one should never.
I personally feel that you are indoctrinated, and that you do not have a comprehensive or sound argument to justify the Catholic's exclusive authority - office of the papacy, intercession of saints, any mariology, and so on.