Ooh! Sorry to hear about the foot.
Intrinsic foot exercises & taping were probably the two most helpful things for me. Taping is especially helpful for protecting the foot if you're still running. I've also found a compression sleeve on the foot helpful.
Video for intrinsic: https://youtu.be/2OOJ9AQ1AEg
. And, if you do the 'scrunch your toes to pick up a towel' exercise, try to do it with your toes pointed so you use your foot and not your calf.
Video for taping (Annika's method): https://youtu.be/E_p9F0flO7I