Psychologists call it languishing; most people call it the Blahs. There are ways to move from languishing towards flourishing, and to help others move, too.
Contrary to popular opinion, systemic evil is an essential part of the biblical understanding of evil in a fallen world. Here is an introduction to the topic.
If we imagine that speaking the truth fulfills our responsibility in a world of lies, we are mistaken. Being winsome means truth is always linked with lovingkindness.