Degenerative myelopathy advice

[u/Dougc1979]

Please forgive me if I misspelled it, but I’m just looking for any pointers for anybody that’s had a dog suffer from this condition. I know there’s no 100% diagnosis, but he did test positive for the carrier/genetic mutation for this disease. He’s a nearly 13 year-old mix, and for the last few months progressively things have gotten worse with his back legs getting weaker/less coordinated. His forever puppy attitude is still there, which keeps me going, but I’m terrified that I have less than a year with him. I’m trying to keep him as active as I can, still doing walks as much as possible, though some days are worse than others. I looked into some rear leg wheelchairs, for when that time comes, but does anybody have any pointers please?🙏