I used to be quite happy just to eat sandwiches all day (breakfast, lunch, dinner), or piles of spagetti, but you can get used to cutting it out and I don't generally miss it now. I have started eating this way now just over a month ago and only really craved bread once (fantasized about a jam sandwich on a long drive home).
I think it's just like giving up smoking. I tried that many times as well until I finally succeeded some 30 years ago without any craving afterwards.
What helped me, Deb, is some advice I was given when I first went onto this forum. I had been in denial for a long time (years, really). Apart from one niece, everybody in my family has diabetes. My mother and aunt went blind with it, my mother had gangrene.... I have always kind of accepted that eventually I would get it, too. But even though I knew the advice on how to delay it (losing weight, for example), it was always something to start next week.
When I went onto this forum (still in denial and not really willing to do something about the prediabetes and certainly not willing to give up bread, pasta, chocolates, cakes, etc.), someone suggested I look at foot amputations. I refused, but after a few hours I did google them and from that day onward the thought of getting full blown Type 2 is not something I am willing to accept as inevitable without putting up a fight to delay it as long as I can.
I am not sure where you could prick yourself to test for blood. I think fingers are the usual ones and the needle with which you prick is so tiny, it hardly hurts (the pain is far less than being pricked by a sewing needle).