I have been thinking some more about these points.
You are worried about weight gain on insulin but are you aware that gliclazide and invokana can also cause weight gain, and they carry significant side effects and risks of serious illness? I think insulin, taken in the right way, is safer and less likely to cause weight gain. There is info about the drugs you are taking here:
Gliclazide:
"Can cause hypos. Causes hunger and weight gain May cause reversible beta cell burnout with prolonged use. Least heart attack risk of this class of drugs."
Invokana:
"Increases stroke and heart attack when started, raises risk of acute kidney injury, causes dangerously low blood pressure, low potassium. May raise risk of liver damage, breast and bladder cancers. Too new for all side effects to be apparent."
Source:
http://www.phlaunt.com/diabetes/17977284.php
And more detailed info about these drugs is here:
http://www.phlaunt.com/diabetes/25311847.php
http://www.phlaunt.com/diabetes/36474059.php
Your mum thinks that your anger and frustration are caused by knowing about your blood sugar levels. Aside from the short term danger of stopping testing (you could get ketoacidosis and not know it), I think you need to know what your BGs are so you will feel motivated to get them down. But what I also want to say is that the
real cause of your anger and frustration is likely to be your high BGs. I imagine you feel dreadful - foggy brain, fatigued, low mood, irritable, and I would be surprised if you didn't have some bladder, bowel and chronic skin rash issues too.
So, in addition to long term complications like blindness, amputation, and kidney failure, high BGs are making you feel awful in the here and now. You might not be fully aware of this because the symptoms have been there a long time and have crept up on you slowly. The only ways to get your BGs down into the healthy range, where you would feel so much better, are to seriously cut out carbs, or go on insulin. And based on your reported food choices, I don't believe you are willing to seriously cut out carbs at the moment.
I suggest you discuss with your doctor whether the benefits of your current meds are worth the risks, and also what the benefits and risks of insulin are. Please remember that the way to avoid weight gain on insulin is to be on both long acting and short acting insulin and adjust the dose of short acting for each meal according to the carbs you intend to eat. This is known as basal/bolus multiple daily injections with carb counting.
(If your doctor says insulin causes weight gain, they might not understand this method, and be thinking of a fixed dose method, which does not work as well, according to what I've read at Blood Sugar 101 and on this forum).