Have you heard of The Lightning Process? There is a practitioner in California, Berit Frivold. Her website is vitalitytools.us
I did it 2 years ago, (in UK). I learnt how to stop the adrenaline response, which was "on" permanently in me for a while. The process can be used for lots of disorders. It is retraining your brain to be calm.
I can only say it worked for me, and gave me hope, out of the perception of danger.