There's a strong connection between panic/anxiety and the adrenal system. Doing things to lessen the stress on these glands can greatly reduce your anxiety. Things that have helped me:

*Stop procrastinating - omg I think I'm my worst enemy. Procrastination undermines my well-being, because knowing I need to do something stays on my mind.

*Less caffeine

*Healthy diet

*Multivitamins

*Supplements for the adrenal glands: B6, Schizandra Fruit, and my absolute live saver: Drenamin by Standard Process (available only through dr.s - I usually get mine from chiropractors)

*Deep-breathing exercises