I also have diabetes and one of the other things I suffer from is depression. Your body has not betrayed you, it is just one of those things. I imagine that one or more members of your family also have diabetes and you were genetically predisposed. Learn all you can about it and do whatever it takes for you to live safely and comfortably with the disease. It will become a normal part of your every day life eventually and won't seem quite so overwhelming to you. It is going to take some time to get the meds for the diabetes and depression and all properly regulated but I think you WILL begin to feel more comfortable about things as time goes on. Good luck to you!