The eve of the beginning

Night before I head in for weigh in and start of this 'Survey'. I'm not sure if I really want to pedal to the metal and win the a prize from it. Since it's a survey, the prizes seem rather low budget, so for me the real prize will be loosing the weight and getting exercise back in the menu. They say I can eat whatever on the the weekends, only the weekdays are required to for me to be following the diet. I'm not sure how I feel on that at the start of this, if I'm really doing this, then I'm doing it 24/7, no scheduled days off. This is a big deal for me as it will hopefully be a turning point in my life and I hope to be able to make this work for me. My goal really isn't a set weight but a size. I want to be able to shop at somewhere other than Casual Male XL, I want a single seat on an airplane, I want to be able to ride roller coasters again, and I hope by reaching those goals that maybe, just maybe, my back pain may lessen to some degree. I went ahead and bought the meal shakes the diet allows, and I bought a semi antique postal scale for weighing my food. And plan to do my grocery shopping after my weigh in as I have a few questions on whats allowed. The paperwork wasn't that clear on a few points.