Does anyone have some suggestions for how to keep bloog sugar at normal levels when you have diabetes?

Yes: Be compliant with your treatment protocol: follow the proper diet, exercise regularly if you can, take your medications as prescribed and follow-up with your doctors at appropriate intervals. There is no cure for diabetes at this time but on a proper treatment regimen, it can be controlled and you can prevent development of complications.

Diet and exercise: The answer to this quesetion is really complex and highly individual. In general it involves regular exercise, a dietary regimen preferably from a dietician, and medications prescribed by the doctor. The last item might possibly be unnecessary, but that is the doctor's call.