I plan to apply to McKinsey Madrid around November 26/27, based on advice from Business Analysts who suggested this as the latest optimal timing.
Currently, I don’t feel fully prepared for the process. I've recently completed the Bain SOVA test, and although the questions were not particularly complicated, I experienced stress that led to small errors (and I will probably get a rejection), and I'm concerned I may face a similar issue with the McKinsey Solve. Although I perform well in practice, the pressure of the exam environment has affected my performance and I want to mitigate this asap.
My goal is to strengthen my preparation for both the Solve and case interviews so that, if I pass the test, I’m not caught off guard by the following rounds. Coming from a target school but with a non-business background (Psychology), my main areas for improvement are mental math speed and business knowledge, though I know the basics and have strong business intuition. I left my job to dedicate myself to MBB preparation full-time.
What would be the most efficient way to prepare given these factors?