It all depends on whether you will change. Becoming physically active every day is guaranteed to transform your life. But it is important to make reasonable goals for yourself.
Work out. The more muscle you build, the more insulin your body will use. Those at risk should get some exercise at least once or twice a week. It doesn't have to be traditional, boring exercise like running on a treadmill or take a lot of time. Any physical activity like household chores or a hobby that is physical in nature.
So let's just say you change your diet the right way and do some exercise and reduce your blood glucose (bg) so now your fasting reading is a healthy 85. And this is not so hard to do by the way - you can usually do it in 2-4 weeks. If you change your diet back to what it was when you had high blood sugar, what do you think will happen? Of course your bg will go straight back to where it was. So as long as you maintain the right diet, your bg will stay normal and you won't have any symptoms or long-term complications from diabetes. Pretty good eh?
Physical activity will help bring you out of type 2 Diabetes, minimize damage from neuropathies and improve decline in mental ability, so you cannot let diabetes burnout keep you from daily exercise.
Next, you should have a doctor that you trust and respect. Having diabetes means that you need medical help and for this reason, you need a good more info doctor that is knowledgeable. You should feel comfortable with your doctor and be able to ask him questions as needed. There may be things you need to talk to him about and it is crucial that you feel comfortable doing so to keep you as healthy as possible. Also, you want to make sure he is treating you with the latest in diabetes research.
Type 2 can be typically be reversed in 2-4 weeks. If the Type 2 vicious cycle has been at work for some time, it may take longer for your islet cells to recover.
The treatment is to inject the insulin that should have been made by your islet cells. It's a life-saving treatment. It's not a cure, because the person needs insulin injections for life.