Climate warming, far right rising, democracy eroding, huges setbacks un humain rights, hate crimes exploding, biodiversity dying, activism more ans more criminalized, etc...it seem society is living its last moments, and doomerism looks like the only rational option. So what prevent you from being a doomer despite all of this ?
The world is always on the edge of destruction. There's always an economic crisis, humanitarian crisis, war, natural disaster, etc going on all the time. Our parents lived in the end of days with the threat of imminent nuclear war, endlessly rising violent crime and endless spread of HIV.
The real problem is how news is reported and talked about. How society panics and turns on each other on public forums. How all sense of community is lost and individual consumption is all that matters.
I'm fighting against this by staying off all social media other than Lemmy. All my news comes from a small number of curated sources, and only in RSS feeds (so I get them in time order rather than bullshit news site headlines prioritisation). I use a lot of keyword filters on Lemmy and in my RSS news (Covid, Trump, Biden, most American news, anything that is meaningless to me is blocked immediately).
Also, embrace Nihilism. All of this is meaningless. If the world is going to end, then tomorrow is as good a day as any for it to end. Do what you value in the time you have. Maybe even stop following news completely. Build tolerance and acceptance in your mind.