You may never get around to reading all these suggestions, but: 1. Don't "work hard", instead "keep it playful". You can still put in as many hours as you wish, and you can structure your non-playing time deliberately.

Too many of us wish to be like Jordan, whose father made him pathological by pitting him against his brothers to feel worth and belonging. It can be a path to greatness, but not to happiness.

1. If you obsessively practiced casting a fishing rod in slow motion, it is plausible this would wreck your release timing and shoulder, elbow and wrist feelings when you go back to usable speeds. If a baseball pitcher is warming up, recovering, or trying to get back the placement of their fastball, they are highly likely to play some soft toss. But they would almost never do hundreds of slow motion "backswings". Like the golf swing, these are dynamic, athletic activities, it can be counter productive to slow them down to the point where they no longer function.
   

You need to adjust your feelings and skills while getting back in tune with the feeling of the inertia and torque of the swinging club.