The tradition has its own first move under distress

Two things sitting next to each other rather than one replacing the other. When something weighed on the Prophet, peace be upon him, he prayed. And the Qur'an speaks of hearts settling in the remembrance of Allah. That is a statement about the settling of a heart in certainty. Whether it is also a claim about the course of an anxiety disorder is a different question, and it is a scholar's question rather than ours.