The best advice EVER for managing fear, panic, and anxiety

I'm working on the conclusion to Fear and Fight: Understanding Our Natural and Learned Responses to a Threat. Our principal natural response to a threat is fear. Fear and anxiety are similar but different emotions, as I explain in my book. Panic is an extreme version of both fear and anxiety.

While researching a way of concluding the abovementioned book, I came across Schwartz and Vecchio's 'The basics of survival' in Schwartz, McManus, and Swenton's Tactical Emergency Medicine.

They explain that the first and most important element of survival is getting control of your thought processes. When perceived threats escalate,

How does one control these feelings of fear and panic? The British SAS recommends sitting down and making a cup of tea. This is a great response. Sitting down will stop one's haste ... Making tea forces one to break the chain of thought, which will continue to escalate toward panic. Once this chain of thought is broken and one's mind can be redirected, the person can later return to the original situation with a controlled and rational thought process.

Simple, effective. No jargon. No new world metaphysical concepts. Thousands of dollars in psychotherapy boiled down to a cup of tea by the British SAS. It is simply brilliant.