In the last twelve months I have had 5 operations to fix my two broken/smashed to bits wrists so I feel your pain. Time sat on ones arse being forced to rest is not fun and seems to stretch out into the future like some never ending highway. The good news is, it does end. Even I am nearly back on a Mountain Bike (although its only 19 days until op number 6 – metal work removal in left wrist). I know more about patience now than I care to mention.
My top tips for passing the time include dog walking (although your pooch may not be your favourite right now!), tv box setting (get a netflix account and watch House of Cards with Kevin Spacey, its ace), more dog walking, reading, building bikes, building bikes for mates, fixing bikes, cleaning bikes, Turbo Trainer time ( over the last year I have clocked over a thousand miles in my cellar, thankfully I had split pots most of the time so I could change the sock inside when it got sweaty), interweb tinkering and cooking.
Be positive though, above all else.
Take care.
Matt