Follow up on your hunches and don't be too quick to dismiss your nagging feelings. Let other staff know your feelings and concerns, even if they seem illogical to you. Take care of yourself physically and mentally. Get daily exercise and plenty of sleep. Fresh air and activity clear your mind and help you relax.
Depressed people look sad, feel sad, and act sad much of the time.
They need time and a constructive program of help to get better. But be aware that sadness can be contagious even though depression technically isn't. Concentrate on not losing your own optimism, cheerful nature, sense of hope, and belief in the future.