Some people have found success in controling their blood sugars though a LCHF diet, but I caution you to do your research, especially look for sites that talk about the benefits AND the risks, not just the ones promoting it and trying to sell stuff.
While most people can achieve fantastic CONTROL through diet and LOTS of exercise (no really, lots), you never truly reverse your diabetes. It is something you will always have to watch for, it is a progressive disease. You will never be entirely rid of it.
Metformin, as my doctor says, has a safety net that prevents, for most people, lows. Therefore, there is a good chance you may never achieve the lower readings you want. I do not know how many carbs you take it during a meal, but the plan set by my diabetic team is 45 carbs per meal and a 15 gram of carbs bedtime snack + protein. However, I find I do much better if I eat only around 30 carbs per meal. Changing your diet for the better means leaning on non-starchy vegetables as your main source of nutrition. A diabetic plate should be half covered in them at every meal. You may find some added benefit in adding turmeric (with pepper) and cinnamon to the things you cook. Both helped me lower my sugars to the normal ranges, whereas meds and exercise alone were not. Exercise really needs to be at least half an hour a day, but better if you are hitting that hour mark. Every. Single. Bloody. Day. LOL :/
Good luck.

Hi... Just wanted to say basically what Liz said. Diabetes Type 1 nor Type 2 can be reversed. You can make it dorment or in remission with the perfect diet and exercise. However, it is really not reasonable to expect someone to have the "perfect diet" and perfect "exercise plan" every single day for the rest of your life. Further, there are outside influences that can effect you blood sugar like stress. Being emotionally or physically stressed can send your numbers crazy. There is no simple answer to this disease. The longer you have it, the more difficult it becomes to control because it is a progressive disease. That is why even tho you have worked hard on your weight and exercise you still have the disease. Weight control and exercise are coping methods to control it, not reverse it. Type 2 can cause blindness, fatal kidney disease, diabetic neuropathy in hands, feet and legs, etc. it is a battle you fight day by day and some times hour by hour. Sorry I could not tell you better news, but I wanted you to know the reality from someone who was diagnosed in 1994, 22 years ago.

Well, Neil McPhee I do not believe anyone who has responded to your question is trying to discourage you or be unsuppotive. However, those of us here who have dealt with this disease for decades and kept up with research thru out those decades are trying to tell you the truth about your situation. If you chose not to believe us perhaps you are correct and this is not the place for you. None of us would want to see you leave but that is your choice. We will not support what we know to be untrue. We are very careful to only report, help, support or encouragement based on the facts learned thru research and our own personal stories. Diabetes is a progressive disease. It gets harder and harder to control it the longer you have it. You may find a way to control it with diet and exercise in the beginning. That is not unusual. However, do not be fooled. It is still there and slowly damaging your internal organs and nervous system. That damage will become more and more evident as time rolls on. Now, I will not contribute to this conversation again. It is obvious that you are not ready to listen and that is certainly your right. I wish you the best on your diabetic journey.

Eating a 15 carb snack with protein right before bed often lowers the fasting number.

I was diagnosed in Jan. I find the only time my level is high is in the morning. My ac1 was 6.5 but I am hoping it is lower now. I am still pretty much in denial. I have lost weight, exercise more, and have been eating better.