I've been a diabetic since I was young.
I'm sorry to hear that!  Do you have increased thirst and hunger when your blood sugar is high?
I do!  What causes that?
Sometimes it's because enough insulin isn't being produced by the pancreas
That's what my doctor said.  What happens when I don't have enough insulin?
If you don't have enough insulin then your blood sugar would get too high.
So how can I mitigate that?
well you can either try to manage it with your diet or take injections of insulin
How often do I have to inject insulin?
That's something that would be up to your doctor.  You'd have to follow his advice on frequency so you don't end up with blood sugar that is too low.