Have you checked your library for Sharon Butler's book?
It has RSI in the title but if you search by her name it should be easier to find.

Her website does have a lot of info too but you have to explore all the area/links to find the good stuff. www.selfcare4rsi.com

To me it sounds like they are doing pretty much the "standard" cookie cutter Program of therapy , just doesn't seem like it is working out for you.

To me, if nerves are messed up , you shouldn't do bands or weights yet