Hi O.S. I have been there. I moved back in with my parents for a month after my first marriage broke up. I had a hard time with it as well, but looking back it was a blessing.
I'm not sure what I would have done if I hadn't had them to fall back on for a while before finding a place for myself and my daughter.
Try to consider that they are also making adjustments, having you and your child(ren?) living with them again too!
This is a temporary situation, and you will make it through. Try to be patient, and take the time to do the things that help you manage the stress.
I am also sorry that your parents aren't more understanding about
your anxiety, but try not to let it interfere with your outlook. We can't control other people's way of thinking, we can only make the best of our situations
You will find the perfect place soon, hang in there!
Scaredy Cat