1) Have a good hearty Dinner the day before your C sect because you can't eat on your C sect day and you only get to eat after you are back to the ward & only when the ward prepare the meals.
2) Have a good long sleep before your C sect day. It will be tiring after you give birth, my wife was exhausted after C sect.
3) Don't panic, don't think about anything. Trust your hubby and the Medical Team.
Relax, just think about when you get to see your baby will do =)