It sounds like your daughter is doing amazingly, but I think along with hoping for a cure, looking at the smaller picture should give you even more hope. When I was diagnosed 30 years ago, syringes felt like pencils, glucose meters were no more tan a tube that you matched by eye ... and took 120 seconds to "develop" and you were either 7, or 14mmols, that was as accurate as it got, and the lancets were attached to a guillotine (with a "thwack" sound, to match)
We already have pumps to replace injections, CGM and flash GM to (almost) replace blood tests, closed loop systems in testing to create artificial pancreases and even pancreas transplants ... I honestly hope we will have a cure soon, and I have every faith it will happen, but already, the future is positive!