Rose Tattoo has put it across very well. I just would like to add a few things.

Try to find little things to be grateful for. It is just like finding things worth salvaging in a rubble. I understand, this will not be an easy thing to do, especially now.
Also, take time to pamper yourself. Love yourself. You need to be your own best friend now.
Have faith that this is preparing you for next stage in life.

I have been through many years of rough patch. Lost husband to cancer about 2 months ago. We have young kids. So I totally understand what you are going through.

Find a sense of purpose in life. This will act as a rudder and will guide you during these uncertain times.