Hi Bob, welcome to the forum.
We had a wonderful life before my second son was brain damaged at birth. I'd worked in Australia, where I learned to ride motorbikes and horses, shipped steam engines round the world when I was just 23, bought a house with half an acre mortgage free in our twenties. Adjusting was very difficult. There are no magic wands, and a lot of grieving for what might have been, the dreams lost forever.
Money doesn't solve anything, but it can certainly make life easier.
Make sure your wife is claiming all the benefits she is entitled to, and receiving all the help available.
If you can tell us a bit more about her age and health issues, we may be able to give you a few ideas.