🇬🇧 Pieces for no puzzle - Self

At the end of the day, I’m alone. We all are. Not lonely, but alone. I have many friends whom I consider myself very lucky to have met, but nobody else is with me 24/7 aside from that little piece of soul we call “self”. One self. If I had two, so they could entertain each other, I’d be cataloged insane and thrown into an asylum. But maybe I’d be happy. Aren’t some insane people happy, after all?

At the same time, this second self could not be my own self. An extra copy brings redundancy, not value. So it’d have to be a different self from my own. An entirely foreign entity, which I both completely posess and yet not know at all. How’s that any different from my own already-existing self?

I am me, but who am I?