A lot depends on your age, overall health and dietary needs. If you are overweight, losing weight can be beneficial. I found the fastest way to shed pounds was reducing carbohydrates. Ketogenic diet is one way to do that.

Be sure to request a fasting full blood panel to check cholesterol, liver and kidney function as well as your A1c (long term blood sugar) and a urine test to see if you have any protein in your urine. All of this may affect how your endo treats your diabetes.

Reducing carbs, drinking water, getting exercise (walking is enough) and stopping eating after 7pm or so will help possibly greatly.

Get a glucose monitor, test yourself in the AM before .aking your breakfast choices. Journal what you eat and how much, and check your glucose again 2 hours later. This will give you an idea of how insulin resistant you are. The ADA is still stuck on low fat, high carb diets to treat diabetes. I feel this is misleading.
Eating healthy fats (no Veg oils, seed oils, canola etc) reducing processed foods. Reducing carbs , increasing fiber, took my A1c and lbs down. Don't freak out. This disease takes a long time of unchecked living to do major damage and you can turn a lot of it around. Do not wait for your endo to make lifestyle changes, though