Seems I cannot edit/update post, so I'll add a new one.
Since you wrote "instant release? Is there any natural process rather than taking medicine or doing meditation?"
Those type of things usually requres practice... There's no such a thing that can instantly solve pressure without spending some time doing it...
However, refering to both Wim Hof and link I posted, latest and greatest research on neurobiology shows that we are equiped with different fine tuned systems to help us in different situations including the one you mentioned... And breathing techniques are the best/most efficient way to tap into it.
From personal experience, depending on the severity of disturbance ( to call it that way) breathing approach requires more or less focus, but it works.
It's not a magic solution but it does influence hormone production and how they influence us.
Couple of days ago, on top of all tension I feel right now I got some bad news from home and burst into flames ( from inside).
It took me almost 20min of breathing, going out on the sun and focusing/defocusing my field of vision to calm down... But eventually I did, and continue my day in a productive way.
This is short, diy approach explained, for emergency situations :)