Hello,
I am sorry to hear that you are suffering so much and finding little relief. It is challenging to deal with such loss and uncertainty. I am glad that you are working to stay positive. It does make a difference in our pain levels. I cannot answer the SCS questions although it is my understanding from studies that they work best the first while (2-3 years) then the body adapts and efficacy goes down.
Have you tried ketamine infusions? I am getting them now and feel that it is helping. It may also be worth looking at something like Calmare. It is controversial and subject to many opinions but is much less permanent a thing to consider.
Stay strong and keep up the fight.
Sending hugs,