Obviously, I'm not a fan of the whole idea.
AI tells me that despair is a symptom of depression, the most prevalent condition of humanity. Psychology could be redefined as "depression management" quite easily. Can I save you some time and money in saying that you can often solve most of your depression episodes with one activity: repentance.
And if ye have no hope ye must needs be in despair; and despair cometh because of iniquity.
So the combination of a lack of hope and iniquity, according to Moroni, leads to despair. My thought is that iniquity is at the root of hopelessness as well.
How to solve iniquity? Repentance.
As we repent, we re-establish hope in the proper source - Jesus Christ and his atonement for our sins. This will lead to the overcoming of despair, the basic "emotion" of our times.