Sometimes another point of view can help you see a situation more clearly. Often, hearing your worries out loud helps put them in perspective. Eat a well balanced diet complete with fresh fruits and vegetables. Avoid caffeine, chocolate, and alcohol. These and tranquilizer medications may have short term calming effects but over time they increase the body's reaction to stress.
Laughter is often the best medicine.
See a funny movie, read a light-hearted book. Spend time with a funny friend. I'd finger paint more and finger point less. I'd do less correcting and more connecting. I'd take my eyes off my watch and watch with my eyes.