Fear

OKR systems tell you if what you are doing is on the right track. You would need to check-in and review yourself weekly, monthly, quarterly and annual basis, checking your purpose and well as progress.

We seem to set goals around New Year's to re-evaluate where we are in life.

Statistics tell us that the vast majority of people will fail at their New Year's resolutions, but by choosing the right goals and creating a well-grounded plan, we will be able to keep on track.

It's a strategy of mixing up the type of problems you solve when you're testing yourself.

That way, the testing conditions are more similar to real life, where you first have to figure out what kind of problem you have on your hands and then solve it.