http://www.xhalr.com/: this is a guided breathing exercise that can help center your breath and bring you back to this moment, try following along with this for several breaths. This can be helpful for both anxiety and panic.
https://thumbs.mic.com/MDM5NDYxMGJmMCMvd1czRURsZGxOc0FRM016WmZtZ0E4VFNRVWQ0PS9maXQtaW4vOTAweDkwMC9maWx0ZXJzOm5vX3Vwc2NhbGUoKTpxdWFsaXR5KDgwKS9odHRwOi8vaW1hZ2VzLm1pYy5jb20vZnh1NWxjNGh2d2RseXdwYmdobDU2YnV2ZGp1a2VqbXd5YnhpZXYxanRmaGlvZGNhcWtpaXR5d2N5NWFlc2dlNy5naWY.gif: this is similar to the exercise above; it’s just a different design. Hey, don’t judge, sometimes I prefer more complex shapes. 😛