Reflect

Here, effort and reward have a negative correlation—that is, the more effort you put into doing something, the more you will fail to do it. 

Effort and reward have a linear relationship when the action is mindless and simple. Effort and reward have a diminishing returns relationship when th...

• They're optimistic. Bad things happen to all of us. Happy people don't complain, whine or let pessimism become a self-fulling prophecy.
• They view problems as challenges. They focus on solutions to the problem and reflect on what they're grateful for.

Studies have shown that people that are really good at achieving their goals are not the ones that put more effort into exerting self-control in the face of temptations, but the ones that experience fewer temptations to start with.