2. Don't let fear be your own worst enemy and hold you back from achieving your goals.(不要让恐惧成为你自己最大的敌人,阻碍你实现目标。)3. He realized that he was his own worst enemy and needed to make some changes in his life.(他意识到自己是自己最大的敌人,需要在生活中做出一些改变...