Just like the saying "life(uncertainty) is what hits us while we're busy making plans" (I might have paraphrased a little but I'm sure you get my point).
I feel like sometimes these uncertainties leaves us with hint(s) and gives us space to make plans, but for majority the space always seem not enough and that alone is good enough to put us in our feelings, it definitely will allow fear of the future and in no time our efficiency will fade with time but, I strongly believe that if we could just "at least prepare for things that we know might happen. It makes it a little bit NOT scary." Like @thecuriousfool as mentioned. Then again, income diversity might a good way to fight financial uncertainty but sure not a permanent solution.
This can be true on some occasions but only if you're actually conscious enough to notice it. In reality I think we cannot escape these uncertainties because they're part of our reality, but then we can make the most of it even if it's not advantageous.
Yeah true...
Exactly, it is actually one of those major things that keeps us going.