The very best (temporary) advice for dealing with anxiety is to calm yourself down, relax as much as possible, take a deep breath, take your time (don't pressure yourself and start rushing), and use slow talk if you're going to speak. This is the first strategy we use to start the process of overcoming social anxiety. There are dozens of other strategies we put into place, too.

https://socialanxietyinstitute.org/top-5-list-benefits-cognitive-therapy