How can you tell when you need to upgrade your level of emunah and bitochon? Your nervous system gives you feedback. View anxiety and nervousness as a message, “Time to elevate your level of emunah and bitochon.” Don’t become upset about this. That’s not very helpful. Rather, be appreciative of the feedback. The message you are receiving is immensely valuable.
(From Rabbi Pliskin’s book, Serenity, p.92)
(copied from aish.com)