Every day, remind your child of two secrets of happiness: SINCERITY and trying their best to be OUTSTANDING.
Without SINCERITY, his happiness will be subject to other people’s responses to his efforts.
As for being OUTSTANDING ~ each of us has it within us to excel. Teach him that every single time he puts in his best effort, his brain produces a natural chemical (endorphins) that makes him feel good. SINCERITY and consistently striving to be OUTSTANDING are two natural yet powerful antidotes for depression.