I suffer from PTSD and to a lesser extent, general anxiety. Couple that with depression, and its a doozy. I'm here to assist anyone going through a panic attack. But in case I'm not on, there are steps you can take. First step, breathe. I know it sounds like a silly thing to say, but as many people who have panic attacks will tell you, their breath often becomes labored. I myself will hold my breath at times, until im forced to breathe shallow breaths. That's not good, suffice to say. It sends your body even further into fight or flight mode bc it deprives you of a basic need. Your animal instincts kick in and rush adrenaline through your body. Plus, the lack of oxygen makes thought processes harder to well, process. Second, assess your situation and the actual threat, if any, present. If there is no realistic threat, try talking yourself down. If there is a threat, that leads to step 3: problem solving. Try to come up with a reasonable response and a solution to the problem or threat at hand.