Are you trying to crack the code on how to tell when you're going insane? That's deep, bro, I've had the same desire for many years now, myself. I fear what will happen to my mind over time as the years go by, and my isolating loneliness grows even deeper. I want to know I'm still sane, I still have hope of pulling through. But it's getting hard, man; I'm believing some really crazy shit, all cope, and yet, I truly, honestly believe it. Without any evidence.
Am I... am I a god? Stuck in a mortal body? And what for? As punishment? Do the other gods hate me? Or am I just the reincarnation of a Nazi war general, whose perspective I once dreamt from, as I was discussing war plans in a dimly lit room? Are the white-eyed demons a very real manifestion of my worst nightmares who live in another dimension, perpendicular to our own, and if I let my guard down, they'll pop from the shadows and pull me through, to torture me for all eternity? Are other people, potentially...
telepathic? I've been keeping up a "shield" of sorts, around my mind for many years, to keep prying probes from getting into my brain thoughts. But I have to maintain the shield by thinking about it constantly, or it goes away. I don't want people reading my mind, man.
Or did my mind just crack from the sheer loneliness of my existence that these crazy, whacko ideas popped into my head, and I believed them because they were there!