Get a fresh perspective by deciding whether you are a strategic or tactical thinker and then commit to taking a contrary view. Strategists think in 'big picture' terms and are able to sketch out the broad strokes of an entire project. Tacticians focus on daily logistics and the specific tasks that get things done.
If you are a strategist then make time to concentrate on the small daily tasks that will make your lofty ideas a concrete reality. Watch our for 'analysis paralysis', the inability to make a transition from the theoretical to the practical. A perpetual succumbing to the fear that there just might be a better way.
If you're a tactician then look up from the 'to do' list and review your daily activities in a broader, more comprehensive context. Are your efforts aligned with your company's mission statement and objectives?
If you find it difficult to view your work from the opposing perspective, then go and discuss it with someone who possesses the opposite mindset. I always find that it's a wonderful release to have a trusted tactician tell me "Steve, stop fiddling about, it's time to take action. Sometimes, done is better than perfect!"