I just finished teaching for over five years in China. Depending on the context and situation you find yourself in right now is going to change how I could advise you. Please feel free to e-mail me or drop by my on-line school and talk to me directly. Since you are in China, you will need to use a proxy server outside of mainland China to view my web site.
Don't worry too much. My first class there was with over forty students.
Eric Paul Monroe