With hunger, it can be helpful to remember that it will not continue to build and build until it is intolerable. Rather, it will build and pass, like a wave. If you try ignoring it and drink a cup of tea or black coffee, it should pass.
During extended fasts, you may find yourself hungrier on the second day. After that, it gradually decreases. Many people report almost no sensation of hunger by day 3 or 4.