Teaching children resilience

Shape an Optimistic Explanatory Style – model a positive style yourself. Criticize behavior, not character
Teach your children their ABCs – adversity, belief, consequence (as in I'm OK, you're OK; transactional analysis)
Teach your children how to dispute their negative thoughts.
Let Them Fail -They need to learn to persist in the face of failure. Without failure and persistence, there'm no mastery (the feeling of being in control and knowing that taking certain actions get specific results). And without mastery, there's no self-esteem and no resiliency.
Give Unconditional Love and Conditional Praise
Internal Locus of Control - help your child feel less like a victim and more in control of his life. Do this by emphasizing a correlation between action and consequences. Parents who gave their kids the most rules and limits had children with the highest self-esteem, while those who gave their kids the most freedom had kids with the lowest self-esteem. Kids want limits, and they're essential to their healthy progress.