With each new impending doom, we, as a populace, focus in it to such an extend that we forget that it is merely another in a long line of calamities that will thrust mankind into a death spiral that we will never recover from. Yet, we recover each and every time. All the mental energy spent on "what if"s is wasted.
It is mentally tiring worrying about each individual critical crisis. I'm electing to actively remind myself at the onset of the next big thing (and there will be one) that, in the big picture of issues, it is just another in the conga line and that I should enjoy the dance. Another will come along soon enough and supplant the last one.