I had the same fracture last year on my right talus when my ankle ratchet let go while I was 20 feet off the ground. It wasn't as bad as yours though. Doctor taped me up and told me to take a month off. I was back on the hill the next week.
I don't work out but I do try to find the time to skate and do the balance board thing. That seems to keep my legs tuned up enough. Working two full time jobs is a health hazard.
Try this trick and spin it, yeah
Your head will collapse