The greatest threat to success is not failure but boredom. We get bored with habits because they stop delighting us. The outcome becomes expected. And as our habits become ordinary, we start derailing our progress to seek novelty.

Research has shown that people who track their progress on goals like losing weight, quitting smoking, and lowering blood pressure are all more likely to improve than those who don’t. One study . . . found that those who kept a daily food log lost twice as much weight as those who did not. The mere act of tracking a behavior can spark the urge to change it.

And I knew that if things were going to improve, I was the one responsible for making it happen.