Wake up early. Take care of your diet. Work instead of procrastinating.
Well, really, it's about having the proper exercise, rest, nutritional, hygiene,, programmes. The problem is that what is proper for one is not necessarily proper for another. There may be similarities among some individuals, and some individuals might be near the ``average advice'' about when to go to bed, how often to do what sorts of exercises, when to eat what sorts of foods, water,, how often to bathe, brush teeth, do laundry, clean/organize your rooms,,. It might be worth trying the average advice, but if that's very different to how you are doing things now, it might not turn out too well. (It might even be your proper programme, but there might be some shock, which might lessen, perhaps negate, it's salutary effects.)
Another strategy might be to try some small change, and wait a few weeks to see the difference in your activity; repeating this until you get to something that works well for you. This can get you to a local maximum, but that's not necessarily your proper programme.
Another strategy might be to choose an arbitrary programme (checking to make sure that you won't die because of it) and then just try it for a few weeks; repeating until the programmes that you have tried are spread around the space of possible programmes, sufficiently close together that it's unlikely that there is any interesting variants between them. Then, based on the best of the programmes in that spread, you should try minor variants, each with it's own trial period, to find your proper programme.
It's best to start with a good idea of the sorts of aspects of your life that might be factors in your well-being, and construct a space of possible programmes based on these potential factors. You can apply some empirical results and basic reasoning to have a basic conception of how the programmes might be related.
For one, your overall movement should correspond with your overall nutritional intake. So, if you keep your movement the same, and experiment with different nutritional intake, or keep your nutritional intake the same, and experiment with your movement, you should get a decent idea of the relation between movement and nutritional intake.
Another example is that, based on the principle of entropy, things get dirtier over time. Also, dirtier things are more difficult to work with, becuase of the greater complexity. (And there's a greater risk involved with things going wrong.) So this is where hygiene comes it. Since things get dirtier over time, you know that, e.g. bathing once a day is cleaner than bathing once every few days. Is the extra cleanliness worth the extra bathing effort? Generally, how much extra cleanliness of that sort is worth the extra hygienic effort of that sort? That something for you to try to figure out or notice. (For all we know, this may differ depending on the person, so there's no reason to be a cleanliness snob, snubbing any less clean, nor to condemn someone cleanlier-than-thou as obsessive about cleanliness.)
So, to start, learn about what the possible factors might be, and learn about the possible factors, then, based on them, construct the space of potential programmes. Then, the goal is to find the measure function on that space of potential programmes. How you go about doing that is up to you, but I've mentioned, above, one way that you might do this. Perhaps there is another way. Perhaps there is a better way.