"Waiting for surgery is making me ill"

I have been waiting for a long time to have a hip replacement at the Queen Elizabeth Hospital I have been in terrible pain for over a year , I eventually had a pre op in August this year with no op date eventually after complaining I get adate for early  December 2019 I had to go for another pre op late November and tests came back as me being anemic so my op for early December has been cancelled I have to go to my GP and get B12 and iron so I have no date for my op and no hope, as the surgeon only does three operations a week in the Queen Elizabeth hospital and even if my blood is sorted it could be months before I get another date ,

I am in terrible pain all the time I can’t sleep at night can’t walk  with out help and know that if I could have had a date for surgery not long after my pre op  I would have been fine I just feel my body is giving up I don’t have any strength to carry on as all I get told when I phone the surgeons secretary  is can’t give you a date or when you get a date there is a chance it could be cancelled what hope have I got? I just wish so much I would have been sent to another hospital which may have helped me instead of suffering all this time with no hope