Goals that are difficult to achieve and specific tend to increase performance more than goals that are not. A goal can become more specific through quantification or enumeration (should be measurable), such as by demanding "increasing productivity by 50%"; or by defining certain tasks that need completing.

Setting goals affects outcomes in four ways:

1. Choice: goals narrow attention and direct efforts to goal-relevant activities, and away from perceived undesirable and goal-irrelevant actions.
2. Effort: goals can lead to more effort; for example, if one typically produces 4 widgets an hour, and has the goal of producing 6, one may work more intensely than one would otherwise in order to reach the goal.
3. Persistence: An individual becomes more prone to work through setbacks if pursuing a goal.
4. Cognition: goals can lead an individual to develop cognitive strategies to change their behavior.

I've reset my goal. I've got the target, now I'm doing my best to aim.

Not much time left.

NEVER GIVE UP! -i've heard it from so many people-

-Fully copied off Wikipedia- =)