(Edis)
I'm still working out things that might help me, so don't really have much advice to offer you but one thing that makes a bit of difference is a breathing exercise. You probably already know about this sort of thing but just in case you don't, it involves taking shorter breaths in and long, slow breaths out, using your diaphragm (imagine a balloon inflating on your tummy as you breathe in) - relaxing as much as possible when you exhale. I learned this to help with pain, but it does make a difference with anxiety as well. It gives me a moment of clearer thinking which can sometimes just be enough to help me keep going.
Is there a long time to wait before you can see the doctor? I don't really understand that much about medical care outside the UK, but I know that it's possible to get at least a general practitioner appointment here very quickly if someone is desperate.
You seem to have so much going on, I know how hard that can be especially when you are already feeling fragile. I hope that things settle down for you a bit soon.
People here do care, and although it can take a while to respond I'm sure that there will be other replies soon.
Take care of yourself as much as you can, and please don't give up.

Bluegrey