I think it's only a horrid nightmare if you're a glass half-empty sort of person.
In the words of the Aussie politician "shit happens" and you have to deal with it. If you let it play on your mind, things will never get better.
You have to rise above it and move forward to make improvements.
When at the bottom, the only way to go is up and sometimes things don't turn around in five minutes, so you just have to keep on plugging away.