How Do I Teach Humility???

So, yesterday was early out Monday for Rylee at school. I knew that and had remembered throughout the morning. Well, apparently I can't tell time, so I sent her out to the bus stop 1 hour late. I remembered right as I sent her, and looked up at the clock...woops! Anyway, she comes back in and she really only had about 1.5 hours left of school. Paige was down for a nap, so I asked Rylee if she would just stay home so I didn't have to wake up Paige, etc. Well, I should have known the answer to that... ABSOLUTELY NOT! So I got her to school and all was well. This morning at breakfast I was telling her that I was proud of her for wanting to go to school, and that I shouldn't have tried to keep her home because school is very important. I also told her how proud I was of her and her accomplishments at school. Her comment to me was, "Mom, it isn't easy being ME." OK, I was thinking to myself, "Well, how hard can it be to be a 6 year old?" I said to her, "What do you mean, why isn't it easy being you?" "Well, at school I always have to help everyone write their numbers and letters, luckily the people I have to help sit right next to each other. I mean seriously mom, it isn't easy being me." WOW! How do you praise a child, but yet not let it go to their head?