Biggest Loser at work

I am in big need of a push. You know that push when you know you need to do something but someone needs to be right there behind you saying "Come on, Let's go" and takes NO EXCUSES. Well I haven't found it. I want to lose weight again.. Man, I want to so bad. However I don't have the push. I have tried many things just like everyone else, but I am hoping that this is my push. We are doing a Biggest Loser at work. Everyone enters with $20 and you must weigh in at the beginning and at the end (you can weigh in in the middle, but you don't have to). I am really hoping this will do the trick for me. I want it so bad, so we will see. No more excuses, and I will just have to find the time to work out.