Doing the best I can for my mind and body on a regular basis makes me feel better because I’m improving by staying consistent with a good healthy routine. I think that consistency is very important for everything we want to be better at. It can be easy to know the right thing to do but the difficulty is in carrying out the action. If that can be done consistently well then life will be objectively better. Everyone knows they need to sleep well, exercise, have a healthy diet, etc but I think being consistent with what is necessary is the key. I leave room for good fun as well, in proper moderation of course.