My daughter was 6 at diagnosis, and we were lucky and went onto a pump only a week later because there was a trial going on. All went well at first, she was an absolute star, then about 3 months in we had an incident where the cannula inserter didn't fire properly and she ended up with cannula and inserter both stuck to her tummy and no way of getting them off without causing pain. I decided no way were we going to drag her to A&E if we could help it, so in the end all I could do was yank the cannula plus a chunk of her flesh up inside the inserter in order to fire it again and release the cannula. I did it as quickly as possible but it must have been painful! This then of course caused her to be terrified of cannula changes (have to be done every 2-3 days) and we'd have to chase her around the house and eventually hold her down to get it done, but of course there isn't an option to not do it. We tried reasoning with her, being stern with her, bribing her with chocolate, threatening to take away something she enjoyed etc etc but nothing worked and there were many tears (hers and ours!). After about four months it suddenly occurred to her that the whole procedure would be a whole lot less stressful if she just let us get it over and done with quickly, and then because she was more relaxed she discovered that it didn’t hurt much either, and since then she has never looked back. And thankfully the problem never happened again, I think it was an unlucky fluke, please don’t let that put you off getting a pump!
But I wanted to tell you this to show you that it does get better, it might not feel like it right now, but it does! It's early days for you and you are probably still in shock, you have to grieve as well as learning everything you have to do now and finding your new normal. It's also hard not being able to explain to your child why you have to do all this, I always thank my lucky stars that my daughter was just old enough to have some understanding of what had happened to her, but young enough that she should not really remember life without it. You'll never forget, it's probably one of the worst times of your life, I will always remember the exact date my daughter was diagnosed and a lot of details of that whole week, plus the cannula incident plus several other things; she however is 14 now so has been diabetic longer than she hasn’t and I don’t think she really remembers much of the beginning. She says she remembers seeing the GP just before they sent us to hospital and she was the one who was ill but I was the one who was crying lol (I knew what was coming and didn’t want it) but I don’t think she remembers it all like I do, she has a very good understanding of it all now and just gets on with it. She is due for a new pump soon and has been researching the options with much interest.
Good luck to you and your family, it’s tough now but I hope things start to settle down for you soon!