Beijing, CNN (CNN)Spike Wang, a 29-year-old financial professional based in Shanghai, is struggling to live the Chinese dream. Wang is one of millions of Chinese middle-class men and women who grew up in a roaring economy. Now, amid soaring rents and a plunging stock market, they are finding daily life increasingly difficult. The past year has been especially tough. Like many middle-class investors, Wang dumped most of his shares in Chinese stocks after his portfolio suffered a 40% loss in just two years. Unable to afford a 37% rent increase, he left his old apartment in Beijing this year and...