Cut through my tendons in my hand. I had surgery, but need one more, physio isn't going to help anymore they said, can I ask to proceed without physio?

Tendon surgery. Is often successful but therapy is equally or more important than surgery as a healing tendon lays down scar and one want the scar to form on the tendon but not to the surrounding tissues making adhesion and stiffness. Additional surgery can be needed for adhesions but it is important to keep passive motion, so often it is best not to abandon therapy, ask your surgeon for more info.
Sure. Also see acupuncturist and chinese medicine practitioner. You will be amazed how it helps your body restore itself!