In life you are either on task behind task or ahead of task. Nothing else. Some might say that being behind task helps you because the stress gives you great ideas witch it sometimes does, but not always. It's better to be ahead of the curve so you will have your work done early and have freetime or get your nest pile of work early.
http://wp.wpi.edu/cdc/files/2013/04/staying-on-track1.jpg