It seems to me that you need to reduce your time spent listening to that nurse.Hi Alan - not sure how to do that. My prescriptions depend on the surgery seeing me on demand :-)
Liam put it very well: listen to what she has to say then decide for yourself whether to take heed of it.
Meet the requirements of your health system to obtain what you need, but learn enough about your body and its needs to be able to be selective about the advice or admonishments you listen to. Also be careful about the source. In this case the nurse is not the doctor; if you wish to reduce meds that is a doctor's role, not the nurse. But meds like glic are a little different; they can cause hypos in real time and you can't usually call the doc at those times.
I'm not a doc, just a diabetic but if a med is causing me significant unwanted side effects, and ceasing it has less dangers than continuing it, I cease it until I can discuss it with the doc.
I wrote this a long time ago and have practised what I preached since: Experts
Never forget that the person who will be most affected by poor advice from any source will be you – not me, not your doctor, but you. In my opinion, more than nearly any other condition, the success of management of diabetes depends on the diabetic. So, while medics can advise and prescribe – it’s your decisions and your actions that will decide your future.