1. Just because your daughter refuses to eat other food, don't just give her candies at 10 in the morning.
    She knows you'll break if she threatens that she'd rather starve herself than eat breakfast like a normal person. Parents, be strong. Let her get hungry enough, she will eventually give up and eat whatever is being served.
  2. Don't coddle one kid because they're being difficult, and be harder on another one just because they're more obedient and will listen to you.
  3. Diet is everything.
    It doesn't matter if your kids' grades suck, as long as they are getting in adequate nutrients in their diet. Health over everything else.
  4. Don't feed them dinner at 9pm just because it's the weekend.
    Going to bed at 11pm, just because they don't have school the next day is a bad idea. First of all, they need to rest properly to grow. Secondly, you're totally messing up their sleep cycles. No wonder they have such a hard time waking up for school on weekdays.