It's a sad time in life when you realize you're not special or gifted, that your destiny is that of every other person's, death, and in the meantime all everyone else is doing is trying to come to terms with this realization.
It's a sad time in life when you realize you're a nobody, and even if others say you have some kind of value it means nothing because you know they have no idea what they are talking about.
You go through the day looking around at everyone going about whatever it is they are going about, acting as if their actions have some sort of meaning. You wonder how people cope with the ludicrousness that is existence. You see someone smile and you don't know whether to smile with them or at them..for their happiness is both deeply flawed and wonderfully comforting.
You grow up thinking you'll be an amazing person....that you'll achieve great things. Then you grow up and realize that you're just another nobody in a sea full of nobodies.
It happened to me a couple years ago. For some reason, I continue to exist. It bewilders me too.