The sum of all your thoughts comprises your overall attitude. - John C. Maxwell

You could use the 80/20 rule. Give 80 percent of your effort to the top 20 percent (most important) activities. Another way is to focus on exceptional opportunities that promise a huge return. It comes down to this: give your attention to the areas that bear fruit.

Attitude is the first quality that marks the successful man. If he has a positive attitude and is a positive thinker, who likes challenges and difficult situations, then he has half his success achieved.

It's good to be out of your comfort zone. Just don't step out of your gift zone.