You think you have 2 personalities? That's fascinating. I'd love to hear more about it.

Based on your second paragraph, maybe you are confusing what you wish to be true with what you know to be true? Or of you are bipolar, could it be your manic and low phases where you seem like different people? Not that I want to kill the 2 personality theory. I often wonder if such a thing exists or if the condition is misinterpreted for dramatic movie plots.