In reply to:

And your refer to
yourself, when you are the subject of a sentence, as "I."


Sorry about the superfluous "r" in the above. It should have read: "And you refer to yourself..."


And, Ryan, I was not being sarcastic or insincere about the "period" part of my sentence. I was making an honest attempt to be helpful. I simply meant that there is only one grammatically correct first person singular pronoun that I can use to replace my own name in a sentence and that pronoun is "I" (standard English).

Period.

Period is a nice word, I think, for indicating that the writer in no way means to waffle.