Are the online feeds' optimizing algorithms making them more depressing, or is the world getting heart-crushingly worse? You don't think you could tell the difference, and the bleakness is all too real anyway. You just no longer see the point in many of the things you used to enjoy, and each week it's harder to fall asleep or focus on anything, even tv.
You feel positively miserable, with no energy to do anything but to lie on your couch scrolling down your feed, now and then, more in listlessness than with interest, clicking on an ad.