Sorry to hear that. Driving can be very important in today's society. I would suggest pulling over into a safe area and take lots of deep breathes People use those little paper bags on airplanes when they are afraid of flying-it helps and thy get to where they are going.
Just love yourself. Touch your toes move your hands around and keep on trucking. Many people on the road feel just as insecure as you do.
I take some serious medications and my driving ability is terrible-i swerve off the road all the time-I just keep moving because so many people do the same thing. and I have to drive
my son to school. I do the best as I can. Panic attacks are fearsome. So sorry you are going through this right now...........