So many of us are a slave to time and calendars. Make your adjenda work for YOU. YOU are the most important thing in that adjenda because if you take a back seat everyone else, in your life, are not as balanced as they could be either.
If you were a celebrity with a manager he/she would get fired real quick if you found that you were over-scheduled and stressed out all the time. Plan for you. And ENJOY a joyful life.