i am also on my second say of my cleanse... you can do it!! i would stay away from the cucumber and celery. i think we are trying to quiet our digestion so that our body can focus on detoxing other parts of our body. and i also would stay away from the chewing gum. chewing gum is just adding other toxins that our bodies will have to eliminate.
i have been making some peppermint tea to stop the cravings... it seems to be working. miraculously i am not hungry. i cant believe it myself. oh, i also have been having a tablespoon of organic blackstrap molasses once a day to get some iron, calcium and more minerals. maybe try that?

good luck!! you can do it!!