I can't find something and I can't stop crying/feeling completely out of control

So I lost a piece of small jewelery, I know every place where I would have put it but I've checked multiple times in every conceivable place and I can't find it. I'm thinking my cat probably knocked it down and it got vacuumed up, but I can't stop myself from looking in each place over and over.I keep getting increasingly more and more frustrated and angry. I know it's not that important but I just get a feeling of panic and anger when I can't find something when I know exactly where it should be. Does anyone have any tips to calm down?

Sorry for formatting, I'm on mobile and not very emotionally stable at the moment.