My old Aussie was diabetic for 3 years before we lost her. She got insulin injections 2x a day and was on prescription Science Diet dog food. It was a hard row to hoe but she was worth it. She got to where she would tell me if she was needing a shot by going to the fridge where the insulin was. But she did develop cataracts and went totally blind. I couldn't afford to have cataract surgery for her but she adapted very well.