Oh my goodness @SeriouslyAgain I don't know what to say other than sorry that you're feeling knocked sideways, sorry that your mother was so reduced by the end, sorry that it went on so long. Not sorry, if that doesn't sound callous, that she's died because from everything you say, her more real self would not have liked to have lived as she was living.
I've done the deathmin really recently so please do fire any questions up. There are things I wished I known.
I hope you feel some sense of pride that you worked so hard to keep her at home as per her wishes. I know you've got ambivalence about this, but for the moment just take pride. It's wierd how much you can feel for someone you don't know, but you have been so helpful, wise and witty on this thread.
At some point when it's less incredibly heartless of me, I will ask some nosy questions about her condition and how it progressed, if that's OK. But in the meantime, genuine best wishes to you and the transition to a new chapter.
[Ps on a different note, we didn't sack the carer... she's overbearing and a bit Mrs Danvers, but does a lot of stuff around the house that saves me loads of work].