Granny I have similar problems, im the same age as you working partime looking after dgc too.I haven't any siblings, to help, but mum has a brother and sister reasonably nearby that are both heavy drinkers, they come out with every excuse in the book why they can't visit, one still drives but won't drive until after lunch and has to be home before dark, neither of them visit her in hospital. I'm also sick to death of her making excuses for them both, while she seems to see me as the sensible one with no life.I would love a life, where she didn't invade my thoughts every minute of every day, as she is now disabled and can't get out on her own, there is always something to do.Sorry I'm going on a bit now, and not being a lot of help, but I do sympathise and know what your going through.I think the only way ahead is to limit your visits as much as possible, I visit 2 or 3 times a week,I have the dosset box delivered same time each week, and try really hard to have a couple of days away now and then, were I enlist mums family to help, if they don't, then I can't do anything about it.She also has a panic button, and a Keysafe to summon help if needs be.Good luck.