You should begin by studying english
Secondly, you should move this thread to its appropriate forum
Thirdly begin with Module A, end with Module C and study Module B in between.
Seriously though, just start. Start with Module A and learn what you think is most important. After 2 hours move on to Module B. Then do 2 hours on module C by which time it'll be midnight and you should go to bed with what you have under your belt. Staying up all night stressing and studying will not help. The sleep is more valuable.
But start!!!