Brian.
Sorry to read your news, as a MS victim myself I understand your situation, that’s not quite true as no two peoples MS is exactly the same.
I was diagnosed with Primary Progressive Multiple Sclerosis in 2003, but I had walking problems years before that. I was then sixty years old, but managed to stay working as an industrial electrical engineer up to normal retirement age.
I would recommend going on line to the (MS Society) web site and the (MS-UK) site, both have a lot of information
and help, not forgetting the (MS Trust) site.
My greatest help by far is the MS specialist Nurses, I am sure there will be a MS nurse service local to you, they have a great deal of knowledge and understanding of living with MS.
Main thing, keep positive if you can, it can be very difficult at times, but don’t let the b****r win.
A good positive, it sounds like me, you have a good lady by your side.
Hope this is of help.
All the best.
Chris.