I don`t know if this is your business or you are an employee but what I will say is that no matter what is happening at work the sun will still rise tomorrow and things will change. Yes, the business may well go, but that has happened before and will continue to do so. New businesses will come too. I`m retired now but I realised a long time ago that work is not something to get stressed over. Most people are still just a number on the payroll. You won`t get any thanks or extra pay for fretting about the business.
The only thing you should worry about is yourself and your family. You lose your job? You`ll find another. You don`t get as much pay? You`ll learn to manage on what you get.
It may sound brutal but believe me, family and health is far more important than any business! Take care, forget work, enjoy life