Just like in the markets, ups and downs happen in life, and there is the ability to prepare for them. Having the mental resources to deal with stress is one thing, but ultimately, it also has to be combined with material resources too.

The moment you realize that situation doesn't change due to stress, you become stronger isn't it? I stopped stressing about money, it just become a reflex when you work hard. Every time you see some situation consuming you, the thing is you are not thinking from the 3rd party view, often that can be different POV you need to get out of stress. A lot of times however material specific stress is only possible to be taken out with efforts and external events.