How do you know that your deity is the correct one?
because he is the only diety that has been here, proven to have lived and died and rose...your protestations notwithstanding....
That's actually not an argument, nor even a good start at one.
If the question is serious, for it even to make sense one must assume the sort of supernatural world that would be required for God, or gods. And thus it is not at all an argument against the existence of God.
It's called Faith for a reason.