The doomsday clock is very misleading. People assume that, because it is managed by scientists and is widely credited by different agencies, that it is quantifiably measured.

The truth is that the clock is entirely subjective and basically based off of the scientist's vibes. Of course a subjective measurement system, spanning over dozens of scientists for damn near 100 years is going to be extremely inaccurate.

Due to human psychology, negative emotions such as fear, anger, shame and anxiety are much stronger than positive emotions. All news outlets heavily abuse this fact, since it gains most traction. Many people use this too, to gain traction to their posts, or gain more influence.

I would recommend you unplug, and focus on hobbies or work that aren't related to the internet. Over time the internet has become increasingly hostile in a bid to capture more attention than competitors. Personally I like to avoid it when I can these days, despite working in tech.