If we didn't have issues with food, none of us would have needed the band. Give your Doctors office a call and speak to one of the staff members. Be honest and tell them that you have stumbled. You will not have been the first and you def won't be the last. Never forget that they are there to help you.
You are in a hard place at the moment. The band is not going to work properly until you find the right amount of fill for you. Every time you go to eat something, think of that small pouch they have created for you. That kept me mindful of the rules.
Now dust yourself off and move forward. You have a wonderful tool that is going to help you get to your goal