Sadhguru
How can I stop my mind from imagining frightening things?
Change the movie in your mind
You cannot overcome what does not exist, so give up that effort. Fear is a horror movie you produce in your own mind, so use your mind differently and make a comedy, a love story or a suspense thriller instead.
Fear means you are producing horror movies in your mind. Nobody else is willing to watch. That is bad for the producer, but you are producing them.