Training + Planning + Gear
Fitness came to me because I no longer had a car and I moved off a bus route. What I had started with recreational hiking, work & chores grew into physical fitness. Further, being poor forced me to make better food choices. Regarding mental toughness, being knocked mighty low by divorce (etc.) I came back through the efforts of friends, the writings of Marcus Aurelius and self-discipline.
As an Army medic, the training was a factor in helping me get over the "Oh shoot (cleaned up)!" response. I specifically recall a guy that had a minor head wound with lots of blood. I took a moment and re-focused on the need to help this guy. Now I respond quickly & calmly whenever I encounter a medical aid situation.
There is a reason that the military & businesses plan things. Having an idea of what you need to do in an emergency is more effective than just going with the flow all the time.
I have too much stuff in my evac ruck. 'Nuff said.
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People don't like to be meddled with.
~River Tam