Judging by your tag line, surely you understand that this has all been written, these things all need to happen and, in the end, the good guys win. Once you accept that, it doesn't eat so bad at you. Sure, it's hard knowing what we're headed for, but again, the good guys win.
Still, the insanity that is all around us can wear on a person, and if you have to deal with physical ailments as well like I do now (Long Covid; chronic fatigue and insomnia most prevalent), it makes it even rougher. Trust me, I am more than ready for eternity but until that takes place the evil that is all around us needs to be fought against, and it can be tiring.