I am diabetic.
I'm so sorry to hear that. My family members have high blood sugar levels as well :(
I wish I could have prevented it before it happened. Do you have any tips for how to prevent diabetes? 
yes, you can use insulin as a medication
What are the causes of diabetes?
Type 1 diabetes
Type 1 diabetes (T1D), also known as juvenile diabetes, is a form of diabetes in which very little or no insulin is produced by the pancreas. Before treatment this results in high blood sugar levels in the body. The classic symptoms are frequent urination, increased thirst, increased hunger, and weight loss. Additional symptoms may include blurry vision, tiredness, and poor wound healing. Symptoms typically develop over a short period of time.
The cause of type 1 diabetes is unknown. However
diabetes lowers the ability to resist infection and also slows healing. At the same time, an oral infection such as periodontitis can make diabetes more difficult to control because it causes the blood sugar levels to rise.
To prevent further diabetic complications as well as serious oral problems, diabetic persons must keep their blood sugar levels under control and have a proper oral hygiene. A study in the Journal of Periodontology found that poorly controlled type 2 diabetic patients are more likely to develop periodontal disease than well-controlled diabetics are. At