Sorry to hear this Zukker, same things here almost.
We lost my Mom to dementia last fall.
We just lost my Dad In-law to Pancreatic cancer, in May on my Wife's Birthday of all days. He didn't fight it due to previous surgeries, leaving him with only one blood vessel feeding his stomach, due to previous bought with throat cancer 16 years ago. He made it another 18 months healthy sharp and able to take care of most things up till the last three weeks. I did get him fishing twice to a spot 3 1/2 hours away and camped for a few days each time. Get your Dad out there if at all possible.
Now my Mom in-law is requiring our help now that he has passed, he was able to tend to her almost right up to the end.
Plus not to mention all the added work of two house holds, here locally to chase.
We struggled for over 5 years with my wife's health, but finally went Holistic and now she has here plethora of ailments under control.
I hope you can get your Wife's under control!!!
Good luck and see ya once we survive and figure all this out.
Dealing with our Circle of people fading away and all the material things that have to be dealt with, when your mood is not in it plain sucks!!!