Stress Coping Tools
The University of Texas at Austin has a comprehensive website called Stress Recess with everything from Why Do I Feel This Way to How Can I Avoid This in The Future. You can take a quiz to access your level of stress management needs and follow their guided program following this link: https://cmhc.utexas.edu/stressrecess/Guided_Program/index.html.
These are two relaxation exercises aimed at disrupting the "Fight or Flight Response" responsible for muscle tension in your body:
Diaphragmatic Breathing : https://www.cmhc.utexas.edu/stressrecess/Level_Two/breathing.html
Progressive Muscle Relaxation: https://www.cmhc.utexas.edu/stressrecess/Level_Two/progressive.html