Confessions of a cat

Most people don’t exert any control over their thoughts so it’s really easy for negative thinking to creep in and set roots because negative thinking doesn’t take any work at all. It’s like weeds. They grow anywhere, anytime, without any nutrition whatsoever.
(Brian Kim)

You have control over what you think. If you do not decide for yourself what thoughts are in your head - well you just have to live off with what other people (and the media, the etc.) provide for you. It’s not a coincidence that famous motivational speakers say this:

You become what you think about.