How cool it would be if they invent a blood test or else to let one know how frustrated he is! For that they’ll come up with something called ‘medically normal level’ of frustration. I think that it will be quite a revelation when a pathology report would say that you’re too frustrated to be on the road! And then will begin the hunt for the reason for it. Cure? The same–yoga, exercise, go running, spinning, listen to good music and read good books.
… well, frustration is useless ’cause it provides with neither insight nor solution or clearer vision. But it is fundamental reason of desperation and myriad psychological issues.