Trust the advice given, even if you do not trust yourself - your body will act on the advice we give it. This happens automatically once we have understood what to do. Here is where to start changing your thinking to 'Rest in a quiet place' and start to react against tension with relaxation and with the correct attitude. You will be very surprised that we CAN RELY on our body to function correctly if we give it the chance. Understanding that thinking inwardly is natural in the circumstance right now.
Agoraphobia usually starts with physical stress signals coming 'out of the blue'.
They are more likely to happen when alone or away from home. These reactions tend to be associated with the particular places where they happened, even if it was just by chance. However we do have similar places of avoidance. The panics are kept alive by our memories which add to our anxiety. The brain controls everything we do, say and think.