Type 2 Diabetes

I'm CarrolJ. A newly diagnosed diabetic in early June 2015. Lots of diabetics in my paternal family, but still new to me. I will be 73 in 2 months, and have been given several new diagnosises in the past 7 months which have kept me reeling. I'm taking 1500 mg of Metformin daily and doing a fairly good job of diligently following my carb limits. It still seems my glucose numbers are all over the place, although primarily staying within my Dr's range, I can't seem to keep them consistent. Any suggestions?