What I have learned and works for me is creating a to do list daily or if you prefer weekly and start your list with the most important tasks on top going down to the least important one. Now is your judgement on how you categorize the importance of each task. One way to look at each task is by asking yourself, "How will this affect me in an hour from now, tomorrow, in a year, or in 10 years from now." It all goes back to discipline - good luck.