I like directing. It takes a lot out of you, but I'd like to do it again - I just have to find a story I want to tell.
Focus on your problem zones, your strength, your energy, your flexibility and all the rest. Maybe your chest is flabby or your hips or waist need toning. Also, you should change your program every thirty days. That's the key.
I taught in a small teacher's college for three or four years, at which point all the administrators got a pay raise and the teaching faculty didn't.