I'm pretty sure this is bad advice. I say this as someone who has irresistible urges to "shake things up" when I'm going through rough patches. In fact, I think that desire is really common. I bet that's why this guy did all that stuff; he had the urge to do crazy things. But just because it's typical to have the urge to do crazy things when you're in a rough spot doesn't mean that you should do them, or that it will…
Everything on this list is harmless. You're taking it way too seriously.
He's just saying that a good way out of a rut is to "mix it up" a little, do things you don't usually do. It's good advice, and can make stressful things not seem so important and final.