[muzani]

Your habits define "you" more than your conscious self does.

When you don't take care of your needs (sleep, diet, exercise, hygiene), your habits take over. Sometimes it's circular - someone could have a habit of eating fast food, then feeling unhealthy, and not having the willpower to cook. Or watching porn until late at night, not getting rest, then not being able to stop.

If you can't take care of your needs, another hack would be to build good habits so that you'd be able to perform well even when you're on autopilot.