Insulin insensitivity or insulin resistance is a physiological condition where cells fail to respond to the normal actions of the hormone insulin. Insulin is a hormone made by the pancreas that allows your body to use sugar (glucose) from carbohydrates in the food that you eat for energy or to store glucose for future use. Insulin helps keeps your blood sugar level from getting too high (hyperglycemia) or too low (hypoglycemia).
There are several causes for insulin resistance such as overweight (particularly around the waist), and genetic factors (inherited component), long term steroid use, pregnancy, infection or severe illness etc. The plan of care for insulin insensitivity varies depending upon how well your blood sugar is controlled, or if you have been diagnosed with type 2 diabetes or pre-diabetes.
First and foremost, I want you to understand that there is no true cure for diabetes. However, with proper management via medication and lifestyle changes blood sugar can be well controlled and sometimes people are able to get off their medications/insulin too.
I am not sure you are doing in terms of managing your insulin insensitivity. Your physician will be able to explain to you in more details on medications, insulin etc. In terms of healthy lifestyle, studies have shown that by losing weight and being more physically active, people can reverse insulin resistance and prediabetes, thus preventing or delaying type 2 diabetes. By losing as little as 5-10% of your current body weight will make a significant impact on your blood sugar. Additionally, incorporate physical activity for 30 minutes at least 5 days a week to assist with weight management and reduce your risk of chronic diseases.