There is a difference between being behind and falling behind. Being behind can just be circumstantial, a spike in duties that temporarily overwhelmed you. But if the delta between what you need to do and what you’re accomplishing each day/week is getting bigger, you have a problem.
Sometimes the answer is to work harder. More often, the answer is to do less. Check your obligations and see which ones it’s time to release. You can’t do everything, after all – and you can’t do anything if you fall too far behind.
The Opportunity Machine 