Wanting to go on insulin help

I know this sounds a bit strange but I have decided that I would like to go onto insulin, the meds I am on just dont seem to be doing much, 10mg dapagflozin, I was on 80mg of gliclazide but my GP put that up to 120mg last monday & the diabetic nurse I spoke to today over the phone increased it again to 160mg per day, my so called urgent appointment to see them is early May & i honestly dont know how I am going to get through the next 6 weeks, I eat 20mg of carbs per day & otherwise healthy, when I asked about insulin on the phone today i was told its possible to go up to 320gms per day of gliclazide, I dont want more of these pills as they are doing nothing, I wake up every morning feeling like I have been in a car crash the day before, I just cannot function anymore like this, was diagnosed type 2 6 years ago but there was some question mark over that as I smelt like pear drops, I dare say they will want to retest doing the c peptide & gad test again but even if I am not LADA I cannot carry on like this, last A1c was 9.2/77, can any advise on what i can say to stop them upping my meads even more?

Yes I do, stupid thing as well i ate a couple of biscuits on saturday & BS didnt go any higher than what they are when eating almost no carbs, they have been hovering around the 16-25 mark over the last week or so as I have had a sinus infection which hasnt helped

I was on metformin & was fine with it for a good 4 years or so but a few months back it started crippling my digestive system so had to stop

I've always had the sr so it was strange why it started so long after, I know very little about insulin, the only thing I know is that there is a a slow release type that drips into your system & one that you use at mealtimes as fast acting but thats it

yes levels are low but dont know the exact level

is it true that they are almost painless?