Anxiety attacks won't really hurt you, they may make you feel awful and tired.
I suffer, I just let them get on with it and tell myself "this can't permanently harm you" and "it's only a panic attack".
As quickly as I can I find a disabled loo and I sit, put cold water on my face and wet paper towels in my armpits. I sometimes put my head between my kneeds. I also stretch and breathe deeply.
Why a disabled loo?
Single compartment, I can cry and it doesn't disturb anyone. There is a sink and generally cleaner. I get privacy.
This isn't you, it's your sitch and is quite a usual reaction to severe stress.
V
Freedom is just another word for nothing left to loose. V 64, WAW