How do you guys cope?

So I've had diabetes since I was 8. It's been 12 years since I was diagnosed. Recently, no matter what I do, I can't get it under control. I've taken extra care of what I eat and changed my type of insulin, but it's always high. Recently, I also gained vitiligo spots on my face, and now, due to this, I always cry whenever I see my face. How do you cope with your situation, knowing that everyone around you is living a better life? They don't have to think twice before eating anything. They don't have to think about how many units to take.