Ask yourself often: Will what I am doing right now help me to achieve my goals?

Whatever you do will either help or hurt your efforts to accomplish your goals. Time is precious, once your time is spent, it can't be recovered.
Ask yourself: Is the activity you are doing right now move a step forward to your goals? If the answer is 'NO', then you must switch to something that will contribute to your goals. Ask this question often, you'll achieve greater accomplishments than at any other time in your life through a renewed sense of purpose.