Helped me move towards resolving the internal conflict between "should I make as much money as I can since there are great opportunities open to me that may be later closed or should I take on some risk to pursue a path to help people and other animals suffer less" and therefore find a way of living my life that works well for me.
Going to the gym even when I don't have energy to do the workout. I don't mean forcing myself to do it anyway, I mean just going there - sometimes doing lighter workout, sometimes doing just light cardio (eg. walking while listening to podcasts), sometimes just going to the sauna, and sometimes just coming to the gym to walk right back.
However, most times, I'm more languorous than tired and after a warm-up I do the whole workout.
And strength training is great for a) general health b) better mental performance c) looking good d) having more energy.