.....

Another is to visualize the Stop sign as an acronym for
S=Stop,
T=Take some deep breaths,
O=Observe what one is experiencing
P=Proceed with something helpful (see the following for more details Stressing Out? S.T.O.P. - Mindful and for STOPP at STOPP skill).

Tools to try for coping! Maybe one of them will work for you.