Consider that worrying excessively about another person, especially a loved one, is a destructive act. It causes you emotional distress which prevents you from being at your best and contributing at the levels you're capable of. Instead of worrying, focus on accepting what is out of your control, and actively changing all that you can.
Hal ElrodNever underestimate the power of gaining a new perspective by simply changing your immediate environment. Going for a walk, reading a book, or talking to a friend can provide you with life-changing insights that you not otherwise attain while remaining stagnant.
Hal Elrod