be very careful! if you are in the early stages, you have a lot going for you. once you get too far, is very hard to climb out.

stop using this mouse until you find a solution. quit your job if needed. i wish i would have stopped day 1, i may not have got so buried.

anyways, can you do voice recognition / dragon software?
get a different non-mouse intensive job?

you are in a good place, choose your next move wisely. DO NOT IGNORE YOUR BODY OR PAIN.