I was just explaining to a coworker last week that training for a FIM is like having a second job. Maybe a part time job, but just as demanding. And I don't know what your coach has you doing but I'm pretty sure you're already plenty set for at least a finish. At this point, just finishing is all about being in the right frame of mind. Now, if you're looking to podium or qualify for Kona, that's a different animal.
Me personally, I'm a 16:59 kind of gal.