Hi welcome it is a hard time people don't know what to say. I was very lucky I had friends that have been soo supportive and others that stepped back.
The hardest thing is to be strong for everyone else take one day at a time.
For your kids I cant help you as mine are adults and can be just as difficult because they are more aware of what is going on. Not sure where you are but I'm sure there must be some resourses out there maybe a book. I'm sure there will be someone on this site he can help you as they are going through the same.
Take care of yourself, you have a long road ahead, enjoy the good bits and try and move on from the badxx