XDJM: 1) You need to live in the US for a few years in order to clone LZ's success. Be warned. 2) Do not copy the watching movies while preparing for GMAT part unless you are LZ's twin! 3) JJ ! JJ ! But you need a solid foundation in math to appreciate the values and hints epitomized by JJ.
Note: The Chinese way of pronouncing JJ is not a repeating SINGLE syllable.