It's understandable to be in this state of mind at some point of your life. After all, you did nothing wrong. Type one diabetes is not caused by any fault of your own; it is bound to develop from the day you are born, if you have the correct genetic makeup. Therefore, some people see this disease as "unfair," or something they "don't really have to worry about." But the fact is, once you develop diabetes, you can't change it. It becomes a part of who you are. And since you can't change it, you may as well accept it. Can you imagine going through all of your life not accepting who you are? That is a burden that no one should have to bear, a burder much worse than having diabetes.
Accepting who you are is a critical part of life and happiness. If you're struggling to accept diabetes as a part of your life, try shifting your perspective. Something that always helps me is thinking about how much worse some people have it. While some people may hate to hear this immediately after being diagnosed or after their child being diagnosed, after some time you come to realize it's truth. Because at first, it doesn't feel like anything could be worse. You're scared, whether it's for yourself or your child, and you don't want this to be happening. It is a completely normal and appropriate reaction. However, over time as things calm down, you must allow diabetes to become a part of your regular lifestyle. Don't make it any bigger or smaller than it has to be. And rememeber, acceptance is key.
I'm a firm believer that everything in this life happens for a reason. While your beliefs may differ, I can guarantee if you have some patience and care with your diabetes, you will in time find at least one benefit from its development.