Worry is not helpful, and it wastes energy. Visualize a positive outcome and work toward that. Live in the solution, not in the problem. Use any accumulated energy in some physical way by exercising. People who exercise regularly experience less anxiety than people who don't.
Lack of exercise aggravates and can even cause anxiety.
This may involve encouraging the individual to stay with treatment until symptoms begin to abate or to seek different treatment, if no improvement occurs. On occasion, it may require making an appointment and accompanying the depressed person to the doctor. It may also mean monitoring whether the depressed person is taking medication. The second most important thing is to offer emotional support. This involves understanding, patience, affection, and encouragement.