Chill out in the moment
Temperature - splash cold water across your face, over closed eyes and cheeks. Alternatively, gently place your face against something cool to cold, like the glass surface of your mobile. Continue for 2 minutes.
Camera out. Turn your attention and focus from the thoughts in your mind to what's around you - colours, contrasts, shapes, sounds, movement. When your focus drifts back to inner thoughts and worries, gently turn your attention (your camera focus) back to what's around you. Continue for 3 minutes.