You are not going to fail! You are so strong!!! You have alreay made leaps and bounds toward a better you. Dont worry about one fry. Did it taste good? Has your taste changed since your surgery?
I am a huge pasta and pastry lover. To make matters worse, I made a human just like me and have married and man who can eat all day and night with no weight gain. Since I was loosing so well on my own, I wanted to schedule a Spaghetti night prior to surgery but felt guilty even thinking about it. I was going to my last nutrition appointment and told my nutritionist about my plans. She said so it! If we deprive ourselves, we will only want it more and then end up over doing. That night, I came home cooked a huge pot of sauce and boiled the noodles. I did walk that day to make myself feel better and that night settled in for my last big bowl of pasta. The anticipation was far better. It did not taste as good as I remembered and did not provide the comfort I had anticipated. I felt like I had cheated myself but at the same time, glad I got it out of my system. Surgery is tomorrow and I am down 55 lbs since I started. Morale of the story - you are human! Eat in moderation, exercise daily, and enjoy the ride! Don't have off limit food! But when you do have the not healthy kind, think about the taste, texture, and how you felt before, while, and after. Best wishes to you.