Another welcome, godrevy!
It sounds to me as if you already have TWO of the best things you can have to deal with PD. Not only do you exercise vigorously and frequently, but also you have a very positive, optimistic attitude. Studies seem to show that a happy outlook produces helpful chemicals in the brain. Laughter truly is a medicine for us.
I have to admit that my scholarly bent made me closer to a "couch potato" than to someone like you. My only real exercise was hiking two or three times a week, because I lived near a trailhead. But when I was diagnosed, I read about the benefits of exercise for pwp and joined a gym as well as increasing my hiking distances. Now, after more than 17 years with PD, I still exercise regularly and take a combination of drugs and supplements. The result (with good fortune probably another factor) is that I am in the first stage of the disease and not progressing noticeably! When I tell people I've had PD about 18 years, they are always surprised.
You can see why I like to tell my story to newly diagnosed pwp. It proves that while PD is not a death sentence for anyone, for some it may not even be much of a life-changer!
Best wishes,
J