I can't even imagine. So glad everyone is ok! My brother's family had a minor kitchen fire and it turned their lives upside down for over a month or more.
One thing I learned from their experience is to keep all receipts of EVERYTHING! Every meal out, every replaced item, etc. Keep lots of notes when talking to people (or like someone else said, do it in writing).
I know personally when I go through a difficult time, I need things to do to feel productive. Maybe taking the time to focus on one aspect of replacing things at a time will help? Focus on replacing the necessities, then the pictures, then things, etc. When ready, start thinking of different decor you want your bedroom, living room, etc. Maybe if you can focus on something fun (if you like decorating), it will give you a better place to visit mentally?
Best of luck to you!!!