Social media and the news can have a significant effect on your mood. Without noticing, you can get trapped in a habit of checking feeds that make you feel worse, constantly. I've noticed this happening to myself, and I see it happening to my friends.
Distancing yourself from the news and social media is perfectly fine, and may help to improve your mood and mental wellbeing. There's no obligation to stay "up to date," and you should put your own wellbeing first anyway.