Hello whereamI, I am so sorry for all you are going through now. Can you at least talk to your doctor's nurse and get an appointment for tomorrow, maybe she would be able to fit you in? Or if their office has a nurse practitioner you can see? It sounds as if you have some insight into what may be going on and recognizing that you need to see a doctor and probably need medications is good. I also sounds as if you love you girls very much and take a lot of responsibility and or have a lot of guilt for the decisions that they have made in their lives.
Keep trying to get that appointment hopefully your physician can refer you to some counseling. Please keep us posted......