I can totally relate to what you are going through. I'm an avid wakeboarder that is about to turn 64. About 6 weeks ago I took a hard fall that caused a lot of rib cage damage. Last year I broke all the bones in my palm snowboarding. And I seem to be always doing something to hurt myself lately. It's really killed my confidence on the water and I really feel like my age has started to limit me for the first time in the last couple years. I stopped worrying as much about progressing and started focusing on just getting on the water as much as possible and getting my exercise. I figured if I start making progress and getting better again, then great. But if I don't then I'll just have fun and stay in shape doing the sport of my choice. I recently expanded into biking, and can see that it's another thing I can do where I get enjoyment and exercise.