Negative thoughts are not necessarily bad.
The idea that negative thoughts are bad
makes them only more terrible than they actually are.
And positive thoughts are not always something desirable.
Positive thinking can be a defense mechanism
a way to gloss over and escape the depths of human existence.
However, sometimes silly fart jokes and stupid stuff
are absolutely necessary,
and sometimes they are simply too much.
It is good to be critical, to some extent,
about oneself and the situation in the world.
It can motivate you to change
and realize that you have to do something.
The problem is when you drown in criticism.