having a father like this isn't easy. my dad has dementia too, but it's still in the earlys tages..so there are things which you can do now to force it to slow down.
we are all there for you..and i do have tos ay this.. though how much you worry about your dad, and want to do the best you can, it's all in the power up there who knows what's best. we can only hope, but have to accept whatever happens, and go on in life.
don't forget to take care of yourself..we all tend to forget that when others need us..you do matter..to the rest of the world..so do look after yourself too.
we all love you lots..