Health: No sugar, almost no processed foods, low carbs, misc supplements to lower sugar, boost autophagy and HGH. Intermittent-intermittent fasting (not a typo).
It kinda stopped feeling good for personal reasons, but it was great both physically and mentally while it did. Probably goes for other martial arts as well.
When I'm in a regular routine, I enjoy exercising and it feels good, and turning up isn't an issue.
At some point though I inevitably lapse. When I try to start again, I can't do what I used to do, so I push myself to try, but it doesn't feel good and it makes me less motivated to continue.
During these periods I've found it helpful to focus on turning up, rather than trying to push myself. Slowly I start to improve and start enjoying it again, and improvement follows.
Exercise: Yoga or walking
Go vegan
Avoid shitty fats