cold water and going outside to breathe fresh air

6

Also. Putting your face in cold ice water will immediately make it stop. Puts your nervous system into a shock mode so the anxiety goes away

4

Sit upright and have your heels pushing into the floor and push your palms into your thighs, all pressure goes into the floor

3

Yes! There are great grounding videos on Headspace as well as TTOPS techiques

1

These are all good suggestions

1