“Cast your cares on the Lord and he will sustain you; he will never let the righteous be shaken.” (Psalm 55:22, NKJV)
The key to longevity and stability in a wide variety of aspects (e. g. moral, emotional, spiritual, relational) is the act of casting your cares on the Lord. The more of our cares we give to Him, the more of His wisdom, confidence, and strength we receive in return.
The times we prefer to coddle our concerns in the privacy of our minds is the precise time we ought to be casting — throwing — those same concerns onto our heavenly Father. Sharing multiplies our joys and divides our sorrows.
When we choose to keep to ourselves the very concerns that wring all of the joy from life, we deprive ourselves of a Confidant who has never revealed a secret; a Friend who has never betrayed a trust; a Defender who has never been defeated. – Luther