Question

What's a good fast way to relive stress?

Answer 1

at present i am not a doctor so i will refer you to do following things
-->Stop shallow breathing ,Create the habit of deep breaths
-->Laugh -Laughter, whether it's yours or someone else's, is the best medicine--and it's contagious!
-->Listen to music. Listening to music does wonders and is a great way to relieve stress, if it is not something that will make you feel worse. Listen to good songs that get you in a happy mood; and just forget about your problem.
-->Get a drink of water.

Answer 2

also, work out !