I found this great quote on a magnet (I even bought it for my Royal Kitchen):
believe nothing, no matter where you read it or who has said it, not even if I have said it unless it agrees with your own reason and your own common sense.
What great advice. So, in the future if someone puts you down or says negative things about you - remember who you are and let it just slide right off. Think about it...if they were really happy, would they really spend their time being critical and mean? Just look at them and smile.