Talk a walk. The military has soldiers do a huge amount of exercise to immunize them against combat stress. Also see a pcp and try an ssri, I don't believe the official explanation of how they work but they are cheap, easy to try, safe, and often help resilliance in the face of stress -- unlike benzodiazepines they treat anxiety without interfering with the natural process of maturing and getting better at handling situations or any attempt to do the same with various therapies.