Dwelling on things is losing the time to do the things I could have done.

To me a hurdle is always near
The end of a task because it is usually the most difficult task to complete. Therefore I fail to complete many things. The point though is know perfection is not possible when time is limited. Do as much and a separate best I can with what I have and appreciate the outcome no matter what. That eases the feelings of facing obstacles along the way of completing a task. Thanks!