Think about managing your energy and not your time. We often deal with highly motivated individuals as the seek a new chapter. Interestingly the law firms we work on behalf of also tend to be highly motivated, this motivation often makes us less productive though as they bounce around. As career coaches we harness this energy and keep projects focused and mange them to a economical conclusion.
A well-designed personal life supports your efforts at work, and being strategic about when and how you work is what lets you have a rich personal life.