Our goal should be to engage in self-evaluation and reflection that is in the middle of this continuum: Critical but Healthy Self-Evaluation. When we engage in critical but healthy self-evaluation we can be honest with ourselves. We can clearly see our strengths and our weaknesses. We know what we can do to improve our weaknesses. We recognize that through the atoning sacrifice of our Savior we do not have to be perfect today, and we can know what things we must do to strengthen ourselves.

I have found that three times in particular provide perfect settings for deep, personal self-evaluation and reflection: during daily, personal scripture study; while partaking of the sacrament each week in sacrament meeting; and when we are in the temple.

Why is prioritizing so difficult? In the abstract, it doesn't sound so tough. You prioritize important goals over less important goals. You prioritize goals that are "critical" ahead of goals that are "beneficial."
But what if we can't tell what's "critical" and what's "beneficial"? Sometimes it's not obvious. We often have to make decisions between one "unknown" and another. This kind of complexity can be paralyzing. In fact, psychologists have found that people can be driven to irrational decisions by too much complexity and uncertainty.
...Tversky and Shafir's study shows that uncertainty--even irrelevant uncertainty--can paralyze us.