Hi Julia and welcome to the forum! This forum has a food and exercise diary if that's what you mean - where you can write down what you ate and did for all the world to see and keep you accountable!! It sounds like you have the knowledge, now it's time to put it into practice!
35kg lost. (November 2005 - October 2006)
15kg gained again (as at October 2010).
Back to the drawing board - Let's do this thing!
"You can't change the winds, but you can change the sails"
"Reach out and take control of what lands in your lap"