It is the strange fate of man, that even in the greatest of evils the fear of the worst continues to haunt him.

Being in the middle of something hard does not stop the mind imagining worse. You would think the worry would quiet once the trouble arrived, and instead it keeps running ahead, finding a further drop below the one you are standing on. That is not weakness; it is what a mind built for looking ahead does when there is nothing good to look at. The fear is extra weight, laid on top of a load that was already heavy.

When the imagining starts, come back to what is true right now, today. Handle the next hour, and let the worse thing wait until it is real rather than rehearsed.