Vanessa - for the Tough Mudder I recommend taking a mouth guard (like football players have) for the half pipe leap. I saw two women break their teeth last year when I drove a friend who was participating in it. I saw many women complete it just fine but better safe than sorry!
1. Calorie counting 1200-1500 calories. No food is off limits.
2. Try to keep carbs below 50% but it's not the end of the world if it's a little higher.
3. Adding in excercise this week, 3 days cardio, 3 days heavy lifting.