Oh, that's brilliant, DeeGem! It really does make a difference. The really frustrating thing about T1 is the surprises it throws - we think we've got the ratios etc sorted out and we still end up too high or low. I suspect your daughter is kicking back against that, resenting it. Cgm/libre gives a huge sense of control back and that's all that anyone wants in life - we can see things on the cgm trace starting to happen, bg starting to go too high/low, and then, instead of just waiting for it to happen, we can step in and nudge it up with a few dextrotabs to stop a low, or a unit or two to pin a high. The difference that makes psychologically, to being able to live comfortably with T1 is huge. It does take a bit of work to figure out how the devices work, and how to read the graphs properly, but it pays back in spades. It will be a new thing for her, and a lot will depend on her attitude to it. That book I mentioned, the author is both a T1 and an endo, one of the first to use this sort of stuff, and he has a few chapters in the book about how to gently win children and teens round to the idea of using it, so it's well worth a read for that. He encourages parents to explain to the child/teen the advantages of it: being able to get a heads up on hypos so they can stop them from happening, to be able to start steering things. And to involve them with it so they want to figure out themselves the dozens of useful things the device can do. Getting libre and then cgm was a huge turnaround for me, hope it pans out that way for you and the kid too.