It's not easy. But it's quite simple: get your average blood glucose below 86 if you want to get healthier and fitter. Test before eating and after eating. If your pre-meal test is above 85, you're going to have a slightly more difficult journey ahead of you. Anything that moves that number up is suspect. I should also add that insulin is THE sodium retention pump; thus, as insulin collapses you lose the mechanism for high blood pressure.
Resistance training is the only activity which reliably disposes of glucose independent of insulin. Carbohydrate restriction is the only behavior which reliably reduces the body's capacity to maintain elevated averages of glucose (yes, perceived stress can still induce the liver to dump sugar into the blood; but this capacity eventually runs dry in an environment of dietary carbohydrate restriction).