I would back off the total work and time-in-one-sitting. Did you try to take on too much at once, at the beginning? I am sure mental stress is not helping your wrist but could be trying to win Rome in a day instead of a week is doing it too. I would rearrange your dreams a little and substitute an overall physical activity for a class or two. Mostly stress tells us we are out of balance; not bad, wrong, lazy, a failure, slow, etc.

I learned from my stress and anxiety that I cannot fight myself and win, I have to work with myself not use my head and will to hammer my body or emotions.