In the Hollywood classic White Christmas, Bing Crosby's character sings a song to Rosemary Clooney about how he deals with anxiety-driven insomnia. It's actually a highly forgettable song, just filler like many others in that movie.
But, since I've brought it up I'll go ahead and tell you that Bing Crosby's character overcame his worries by counting his blessings. If he's running short of cash, he remembers times when he was broke and then things seem better. It's a simple exercise in positive psychology, choosing to notice the good in life and allowing that to encourage happy thoughts and well-being.
It works, at least that's what the social scientist say. And I'm inclined to agree with them.
It's what I'm doing with this picture.