>>12412935The Key is focus in this scenario.
Load your brain up on caffeine, sit in a quiet room, and just get to it. Turn off all your electronics as well unless you need to them for studying. Don’t listen to anything in the background, don’t browse the web for fun etc. Take breaks only when fatigue becomes an issue. Repeat daily for two weeks.
Keep in mind though, this approach can only help you so much. Six weeks of material usually require six weeks of study time.