I haven't tried anything specifically like that, no. But then my feelings rarely feel really overwhelming, and are (at the moment) mostly kicked off by the difficult and scary co-lodger in my current house. Since I'm about to move across country and get to live on my own again, it's manageable!
My approach to working with the symptoms is to take regular small risks to teach myself that the aspects of normal life my lizard-brain finds scary are in fact just normal life and I can keep on doing them. This mostly works, and sometimes doesn't, and then the compassion is useful. I have faith in my ability to be bigger than any one aspect of my experience - and occasionally my lizard brain says "the hell with that, we're outta here!!" and I have to run now and discuss it later