Every one of us has a "good work" to do in life, which accomplishes something needed in the world while completing something in us. When it is finished a new work emerges which will help us to make green a desert place, as well as to scale another mountain in ourselves. The work we do in the world, when it is a true vocation, always corresponds in some mysterious way to the work that goes on within us.
Work when there is work to do. Rest when you are tired. One thing done in peace will most likely be better than ten things done in panic.