Use training and encouragement, instead of criticism, whenever practical.

• Ie, it feels better as a listener to hear "here is how you handle this upcoming situation" followed by "good job! -- you did x, y, and well! Next time can z..".
• Or maybe, "good job/effort, and youll get more chances to practice! that is very good! " (as it really is: we all sometimes need *lifelong* tries/practice.
• So probably never: "You messed up! you dont know how to do things right.", which discourages trying and reduces future confidence in ability to learn/grow.
• Every person is a beautiful person, a child of God, of infinite worth! (including you! )
• Feeling of security in family (lack of fear? feeling settled, calm enough that one can think/grow): calm nurturing, stable, responsible, caring parents & home.
• There is an interesting ~short book called ~ "Leadership and the One-minute manager" (or ...1-minute...?), discussing this for the workplace.