I have to think that part of the problem is a schedule so jam-packed with activity and no rest - which means no wiggle room. When you train hard to build muscle and strength the body needs to REST HARD as well. All parts equal: Exercise, Rest, Diet or the result is = fail. I like Frodo's idea about rotating through things but I'll take it a step further. Rotate WEEKS. One week, focus on strength training, the next focus on your parkour, etc. That way the body is always adapting, and you can give things their full due rather than spreading your butter too thinnly on your toast, so to speak. Thats at least my take.