Esther's fast was decisive, forceful and shocking that shook the spiritual, social, economic, religious, moral, political and governmental structures. This fast is conducive to moments where the siege of the enemy has reached extremes to issue death decrees.
During your fast, you give up everything that is detrimental to your life with God. Get rid of distractions like games, TV, secular music, and anything else that can "trap" you into this world.