As an adult convert to Catholicism I was of course baptized by intinction, but whether that means I am "Catholic" I don't know and don't care. Besides, don't I incur automatic excommunication for my belief in the pre-existence of souls? And if that don't do it, my "Biblical literalism" certainly does!
Biblical literalism would not prevent you from receiving communion but belief in the pre-existence of the souls is not just grounds for the denial of communion, but grounds to be considered anathema—you no longer qualify as a Christian.
It's really amusing to see how different religions made their little man-made rules with which they mete "God's" justice. I was just scolded on an Orthodox site for not using capitalized personal pronouns for God. Does God really care if I write "His" with an upper-case or "his" with a lower-case letter "h," or would he be more interested in how much I am the way he wants mankind to be? (of course, this is all assuming there is God and we have a way of positively identifying him based on somehow knowing what God is...)