Let look at this again, you are correct when you say that in November 2015 Saturn and Mercury would be combust, however once thing you should know that all three that is Saturn, Mercury and even Sun would be in Anuradha Nakshatra that is the star owned by Saturn. Therefore all there would be in the star of Saturn. Saturn supremacy would be strong. Saturn is the planet of hard work , labor, determination. Your efforts would certainly bring you good results. Focus on your studies and you shall get success. Don’t let your mind drift during this period when goal is so close.