I am reminded time and again that the full fasting laws of the church were designed by monastics for monastics and at some point in history they were adopted by parishes in the whole and I find it very difficult for “regular” people if you will to adhere to the strict fast. I think there is much guilt in people if they cannot follow all of the rules.
Fr. Ted Bobosh has a great post today on the nature of fasting. I would suggest you read and re-read his words as they shed much light on the fast.
Remember it is not what goes into the mouth that defiles a person but what comes out!