Most people who deal with anxiety and depression know they are taking a toll on their loved ones. They don’t want to burden you. They don’t want to frustrate you. They would make themselves get better if they could. Above all, get them to a professional. Sit by them and let them talk through their feelings, even if it seems like they’re talking in circles. Acknowledge the reality of their pain and hold them as they face this demon. The validation you offer will give them the strength to fight back, get help, and finally overcome.