Wendy ,
My sister, who lives with mom and dad, takes care of their diabetic cat. He is 13 years old and has been diabetic for , I think , 3 years now. He became quite thin and walked all hunched up etc... You would not believe he was the same cat now.. She gives him insulin shots twice a day & feeds him special food from the vet. Now the cat, has gained his weight back, has a beautiful shiney coat, and plays like a kitten. It took a while to get him regulated on the amount of insulin, but once they did it worked like magic. I have to tell you that she would have been voted the most unlikely to be sticking a needle in anyone or any animal, but to save his life, she did it . Anyhow, just know that you aren't alone in that journey either.. My best to you.
sue