I'm so sorry to hear that you injured yourself and that I somehow missed the update.
I fought for 3 years to receive handicap help so I can give you some advices : They generally refuse to help the first time unless you lost two legs, try to find a specialist who is used deal with the administration where you are requesting help, they generally know how to go through the system easily and can have your request accepted, finally, don't forget to state the obvious like "I have issue using both hands and thus cannot work". You may be laughing now, but I was refused the handicap help the second time because my doctor didn't write "she cannot work" so we had to submit the whole thing again with the addition of one single paper with written "she cannot work".
I hope you'll soon receive the help you need, take care of yourself and don't forget to stretch still, even if you don't work much.