The 3-3-3 rule is a strategy used to help manage fear and anxiety during a panic attack. It involves counting to three three times while focusing on three different things: breathing, body sensation, and positive thinking. By counting to three, you can help yourself to focus and slow down your breathing. Also, by focusing on three different aspects (breathing, body sensation, and positive thinking), you can help yourself to better understand and manage your panic attack. By taking deep breaths and paying attention to your body, you can help to lower your heart rate and calm yourself down. Lastly, by thinking positively, you can help to shift your focus from the fear and anxiety of a panic attack to something more positive.