It seems rather fast to be choosing a glucose meter and needing insulin too. The topic post "Glucose Meters" probably won't attract CFRD patient's advice and information on insulin. I am getting closer to diabetes but am still a long ways from it. I do know some about the topic.
CFers who become diabetic through pancreatic trauma require insulin like Juvinile Diabetes or type 1. Some CFers develop acquired diabetes or type 2. This can be a malnutrition problem in late diagnoses of CF, liver and kidney damage and such. CFRD is generally type 1 which is manageable with consistent attention. Insulin needs vary widely but type 1 diabetes is where pumps start being used most often. Type 2 diabetes is no picnic but many people do reverse it through diet and exercise. Some take an insulin booster, some need oral or shots of insulin. Comparatively speaking type 2 diabetes is more forgiving in treatment and the. Health issues are less severe or delayed compared to brittle type 1.
If my guess is correct that CFRD is maybe in your future, this is one disease you can eat yourself healthy. I did a short study in 1975 on diabetes and the holistic health movement. A typical family started with three of four parents with confirmed type 1 diabetes. Both sets of parents have 20 something kids who haven't presented diabetes. Starting with the marriage of the 20 somethings, they and their children we tracked them for 25 years until 2000. The results were not statistically significant but were "interesting".
11 families that dropped out of conventional American life for an organically grown foods, goats for goatmilk, wheat grass smoothies, the whole hog dive into an uber healthy lifestyle that delayed the onset for the genetically fated parent with two diabetic parents of him/her and one of 16 children became a type 1 diabetic.
When these people went the way of naturepathy, it usually meant building a home up against a National Forest boundary, sinking a well and becoming subsistence farmers. Making a living when your neighbor's talents are the same pioneering O.J.T. people, had its challenges. No internet, no electricity unless you make it and the Spartan conveniences meant a near full time job canning fruit you tended all summer instead of buying DelMonte's finest. People specialized in say goatmilk cheese and similar products and probably the same dollar spent a little time in everybodies hand made bark silk wallets. Life is far less busy and stressful so the answer may be in part where you eat.
Good news is you probably can accomplish the same diet today at health food groceries. You just need more money. All the health food in the world won't stop autodigestion of the pancreas including your insulin making islet cells. If you have usable islet cells, not a type 1 diabetic yet, a pancreatectomy can be performed and they can extract the live islet cells and transplant them into the liver. Bingo, no diabetes. There is considerably more to an islt cell transplant but that is the essence of the procedure.
By the time a person becomes Pancreatic Insufficient (PI) it has outlived its usefullness. At a certain point your CF specialist should be suggesting this procedure. That said, I expect to see Kalydeco type drugs moderating the damage to the pancreas, potentially arresting any further damage. The pancreas will regenerate unlike mature lung tissue so this could be resolved pretty soon.
Hope that helps,
LL