Here is a link to a fantastic article by a gentleman named James Clear at Entrepreneur.com which actually goes against a lot of the productivity and success advice you have been given in the past.
Yet it makes sense.
I focus so much on goal setting, it's true that I am never satisfied with what I have in life and enjoy the moment. My family will certainly attest to that. However if I ensure that I have my systems set up and use them religiously, I'll be able to achieve as much as I would by setting goals, without having the feeling of deflation that comes with not meeting one for whatever reason.
Here is the link - check it out. It may make you think