That adage is so ridiculous that it refers to something that is just

as another saying goes “He hears what he wants to hear.”

This saying is so unrealistic too

that when I first heard the saying I kinda laughed.

The saying makes no sense.

We all get the jitters meaning our nerves are working too much,yet we do

and this can be remedied by deep breathing.

Still relax and try to find stuff to do that you enjoy

and let this pointless and this ridiculous saying go because it is so.