I personally can't seem to do it. But in high school, I had a friend who could delay her panic attacks for almost a couple minutes until she could get to a safe place away from her trigger. She could never explain how she could do it so I've never been able to replicated it. There have been times where three or five minutes to get somewhere safe or pull off on the side of the road would have been safer for me and the people I'm with. Can you delay your panic attack or are you helpless when it comes?