simplicitybliss:

I have a contrarian view of procrastination: in most cases it’s a good thing. It’s your mind’s way of telling you it doesn’t see a smart plan. Either the goal doesn’t make sense or you don’t have a believable way of accomplishing it. Successful, productive people don’t blithely choose a goal and then charge after it. They take time to gather evidence; they study those whose have succeeded and failed. When they finally set out to take action, procrastination is rarely an issue. If you want to write a novel, don’t commit to National Novel Writing Month. Instead, take a novelist out for coffee and learn everything about her world. It’s the commitment that comes from deep understanding of a challenge, not willpower, that leads to success.”

-Calvin Newport

An inspiring view point I totally agree with. If the overall goal does not or no longer make sense to you and your mind is disengaging due to lack of a smart plan you can use as much willpower as you want. Picking the right goals and projects is key to productivity. Watching and learning the trades of those that have achieved what you are pursuing is also a great recommendation.