One of the few times I shed tears was when I accidentally frizzed the front of my wig by opening the oven! I had a spare, it wasn’t that big a deal but the tears weren’t just about the wig, they were about the whole ball and dice. The incident was just a trigger.
However much our hair is part of our identity, it’s only a part - you don’t suddenly become an unknown element when you lose your hair. It’s just a very visible reminder of what you’d rather not be reminded about. But it’s temporary, things will change and who you really are will remain constant - may even shine! Best wishes.