rosebud, you are not a loser, you are just struggling to do the right thing, losing 5 stone is amazing, you have huge amount of inner strength to do that, its completely understandable not wanting to put the weight back on...so dont, take the insulin then eat better than you think is possible, count everything, plan every thing your going to eat in advance, try to get your head around the fact that you need food for fuel only, no other reason to eat other than to stay alive, then once your giving your body fuel not food, you can consider something that tastes good a bonus, slowly work on finding tasty fuel, eat to stay alive and maintain your weight most importantly, this attitude causes frustration and pain but not as much pain as your love ones will feel when you kill yourself prematurely, you can do this, you must do this. your special, your amazing! tell us how your doing, 10 times a day if it helps you keep it up, im not going to wish you luck because if you do this it wont be down to luck itll be down to your hard bloody work, ok this is day one im waiting for your next post.
Best Wishes
Andy