Schopenhauer's Pessimistic Philosophy

Schopenhauer is very aware that his pessimism could be taken as as he puts a mere declamation on human misery right so he offers various arguments a a priori arguments arguments which are which he constructs independently of any empirical observations. These these arguments are i think intended to avert the charge of him simply projecting onto the world his own malencolic disposition uh no Schopenhauer isn't exactly a baron of laughs well but what's important is this idea that um human individuality is in some sense a curse that we're all suffering from  right?