Good, you should feel proud.
I feel really guilty in my part of trying to help our kittens. I was about 12 and my mum had made a little nest for them in her bed. She had them in a box part covered by her duvet and with her electric blanket on very low to keep them warm.
I covered them up too much and got them too hot, resulting in sweaty, dehydrated tiny kittens
. It was awful. I think it led to their deaths.
It takes careful, nurturing care and you've done it. Rosie, sadly wasn't robust and I don't think you could have dome any more.
You are a lovely woman, well done.