I have it. It's also connected to PCOS. I'm hypothyroid. I take Armour thyroid which is a natural thryoid. Synthroid, which most doctors prescribe, didn't work for me at all. Try to find a naturopath. Most will help with these issues. Chromium is good for blood sugar regulation. I take NOW Tri-chromium.
I've had the insulin issues since I was a child. Over the years I've read so much. What I've found works for me is to avoid processed sugar and processed foods. I eat protein and healthy fats at each meal. Keep in mind that a serving of Greek yogurt has something like 20 grams of protein. You should always buy full fat plain yogurt. Add your own fruit, honey, etc., to keep it healthy. I don't eat bread often and then it's Ezekiel 4:9. I NEVER eat cold cereal or candy. I eat some dark chocolate covered almonds when I really want a treat. I eat steel cut oats for any cereal. Boiled eggs are a great thing to keep in your fridge for a quick snack. I only have 2 fruits a day. I eat very clean; to the point I make yogurt and almond milk. I use raw honey and grade B maple syrup as sweeteners. While these are great substitutes for sugar, you can over use them. A bit in my oatmeal or tea, etc. Watch out for ingredients that are basically sugar. Even some brands of stevia add sugars. (SweetLeaf brand is the only brand I've found that doesn't add any other sweeteners.) Avoid all artificial sweeteners. They react in your body like sugar and are poison.
I'm fortunate that my husband and I both cook. I'm 49 and it's taken me this long to adjust to this so that I don't feel deprived or even think about soda, candy, bread, or pasta. Because I eat this way every day, I can splurge on a pasta meal or great bread every once in a while. Everything that's a treat must be the best you can possibly have. My goal is to remain healthy. I have a few other health problems so I work hard to keep my quality of life up. I think that the trick to all this is to go slowly - as slowly as your health allows. If you give up one thing and learn to not crave it, you've succeeded. Then you move on to the next thing and on and on.
I hope this helps and that I haven't offended you or anyone reading this. I have some very strong opinions about food. I just encourage you to listen to your body and what works best for you. I'm not on PTS as often as I used to be but please feel free to message me if you have any other questions.