I've failed my child

I am so right there with you guys on this one.  My beautiful sweet little 8 year old daughter weighs 120 lbs.  Her pediatrician has asked us to maintian her weight rather than focus on losing weight.  She is adjusting to our new way of eating.  I think right now it's easier for her because all of us are trying.  I had RNY in Feb 2009 but even her father and her brother are changing the way they eat.  I told my husband that this was not going to work unless the whole family worked on it.  I explained that if she felt singled out then she would  keep rebeling against the changes we were trying to make for her health.  My mom and stepfather have always been ones to sneak her bad foods too.  I finally had to bluntly  tell them that they were killing their granddaughter.  Ithink that they have finally gotten the point.  Luckily for her she loves fruits and vegetables.  She also tries to be just like me, and since there is a limit on the types of food I can eat, she sees herself as being like mommy when she orders grilled foods rather than fried.  Don't get me wrong, I let her have something "naughty" once in a while, but just not everyday like we use to.  She and I go for walks in the neighborhood and walk on the treadmill.  I don't push her about losing weight, just learning to be healthly.  And that's all I want for her is to be the healthiest her she can be.  I constantly tell her she's beautiful.  I thank god that we have been blessed with a wonderful pediatrician who she loves who is also acting as a support and encouragement to her and me