Buell is right, the 'sprain' will probably take longer to heal than the 'break'...
I broke my left ankle (tip of the medial malleolus) about a year and a half ago. In my case it amounted to little more than a severe ankle sprain. From my understanding docs typically cast with this type of break only to keep things protected while the bone heals up. As far as leg bones go you really did get off easy. It may not seem like it at the moment though
I'm back to 100% now. It took me about 3 months to fully recover.
Do your rehab, and everything will work out...