i am sure there are plenty of people, myself included who can empathise, sympathise with you. One thing about being overweight is it affects everything you do, not just getting breathless, or not being able to walk too far, but brings on a catalogue of problems, and if left untreated can be debilitating and life threatening. Having said all that, there is much you can do, i am not talking out of turn, been in this situation so first stop the doctors, ask them if they have a dietician attached to the surgery, if not then they may have other avenues they can suggest, but it's up to you to press the point. Managing the diabetes is another, with a better diet, more fresh fruit, veg, cut down on caffeine, booze if you drink, at least you stopped smoking, that was probably quite hard, so well done. I am no doctor, but have been, and to some extent in your shoes. 58 is not old, you will only be so if you think it. Change of diet, and lifestyle does work, new hairdo, even new clothes once you have shed some of the weight can all give you a much needed lift. This time of the year is the worse if you feel low, but i would say see the doctor first, ask about the diet and any help they can provide.