Another Ankle Sprain

So I'm just getting recovered from my last sprain and back running about an hour and a half when I sprained my other ankle a couple of days ago. Right before I was going to do another race. It seems like this happens just before a race. I might get nervous about this before Ironman now. Anyways, it's not as bad as the last one, but still a good sprain. Will be off running for a while again. What can you do?? Guess I need to sit more still for some reason, but why start now?