A regular sleeping schedule is key. And it should be in conjunction with nature. Try and go to bed by 10 pm and awaken early in the morning by around 5 or 6. I know this seems early but it gives you a chance to get up without rushing, meditate, do some yoga, take a shower, and make breakfast. It's the healthiest way to get the day started and the more time you allot yourself the calmer you can stay throughout the day.