While somewhat dated, I highly recommend the Dale Carnegie book: How to stop worrying and start living https://amzn.to/2OyxSTh https://amzn.to/2OyxSTh It give

While somewhat dated, I highly recommend the Dale Carnegie book: How to stop worrying and start living https://amzn.to/2OyxSTh https://amzn.to/2OyxSTh It gives lots of practical steps on how to deal with worst case scenarios in your mind and then prepare for it. My favorite example from the book: a man who was in charge of loading explosives onto cargo ships during one of the world wars was paralysed by the thought of the explosives detonating. The book outlines how he overcame that fear essentially by putting the worst possible scenario in perspective. Highly recommend it.