I can feel your pain.
Way in the past I had a similar thing happen only I did not have insurance to cover the damage. I lost all my shop equipment and tools plus some things I had built.
It took me years to build up my tools and equipment again. I did learn to carry more insurance though.
It can certainly be disheartening but you will overcome the shock eventually.
For some years afterwards I would find myself looking for a particular item or tool and finally remember it was lost in the fire!
I wish you a good recovery from your loss.