When you are in the throws of an anxiety attack is not the ideal time to try figure out what is going to help you get out of it. You need to have a plan and a proactive approach!
As I heard once in an Esther Hicks talk, anxiety is like being in a river trying to swim up stream against a strong current. But if you simply refocused your thought on something that makes you feel good, and turn around, you'll find your flow and easily start moving downstream.
What's going to help you move down stream? Learn some about some tools and techniques that might just help you in this video.