Hehehe , it was always the case there was no time humanity had peace war was always waged people were always suffering others were lucky to live a stable life with no wars or diseases others not so much... You get to see the world in a bit more unstable state currently and thanks to the internet you can know way more than any time before , i guess our minds arent fit for this amount of information as we always we mostly lived with our society and that was really it.Knowing how screwed the world is got me more depressed
So dont feel depressed humans will be humans no matter what i hope this makes you a bit better knowing we lived like this for all history.
Don't worry about things you can't change now focus on what matters for you its ok if you stay in touch with the world but don't make it your number 1 concern.