Plenty more to practice...

Instead of becoming frustrated with what you can't do and can't play, concentrate on what you can actually do.

Spend the recovery time becoming a better musician.

You can always work on rhythm exercices tapping on your lap, hand drums or a drum pad.

Work on singing the notes on your instrument, until you have a deep connection to each one of them.

Better yourself at singing other instrument lines.

You get the idea. Take inventory of the areas you never felt really comfortable in, and work more on them. Musicianship, music history, composition, notations, music reading, listening to type of music you never heard before ...

Maybe get into electronic music, explore synthesizers... world music... ethnic... dancing...

It's endless, and as you shift your focus to what you don't know and start learning new material, you'll focus less on the focal dystonia and more on the complete musical experience.

The great advantage of going down this road, is as the time goes by in the recovery process, you'll keep growing as a musician. At some point, you'll feel like you have gained more than you have lost and you'll feel happier and more fulfilled by the complete journey.

At some point you have to stop fighting the universe and let it take you on a ride...

Don't waste time