Personally I would take her to the vet to get her checked out for bowel or urinary infections. If she is losing sight and hearing she may be frightened. It sounds as though you need to step back a pace to calm your reactions. I can appreciate that you are getting fed up with all the work but she is an old dog.
My present oldie (15) has taken to peeing (and pooing) indoors at times but I know I need to put her outside more often as she doesn't have the control she once had. She has also become blind and is certainly more aggressive with the others because of that.
Any way first things first and do take her to the vet, please. Let us know how you get on.
I have to agree with everything Patty wrote. Changing behavior ALWAYS needs a vet check. Increase aggresssion can be due to thyroid issues, pain, tick-born diseases, constant hunger (due to other things), etc. You didn't say in your post if you'd recently seen a vet and discussed her new issues.
My oldest (16 in December) has failing kidneys (nonFanconi) and does need to pee more often. So, I put pee pads down in the house in his favorite pee spots. He's usually pretty good about that, but he does still pee in other spots if I'm not watching him carefully or if he gets a bit aggitated about the sitting arrangements. Would your pup stay in an exercise pen? That would give her a little more room than a crate.