I took the leap surprising even myself

So the gym that I belong to, is having an 8 week body challenge. What it is, you pay a fee and you have weekly weigh in's and then you get 2 group personal training sessions a week for 6 weeks. Then two weeks on your own. At the end of 8 weeks the person who has lost the biggest percentage will win. They have a bunch of different prizes etc. When I saw the form, it was like a light bulb clicked in my head. Usually I say to those things why the hell would you pay for something like that on top of the gym membership price. This time, I know the reason. I need to have a drastic change like that. What I am doing is not working so I need to change it and step it up a whole lot. Wish me luck as I embark on this journey.