m4x
Don't worry about it, I also ended up doing full time study and was in a similar position 8 hours at the school and then feeling worried about how much or how little of it I could remember. YOU CANNOT STUDY ALL DAY AND ALL NIGHT! The technique used on my last module was relax a bit more in the class and take less notes than I was doing, after the 8 hours at school I would take 1-2 hours off then I would spend 1 hour max going over key points of the day (drawing tables etc.) which were put on my large notice board. I would then spend varying amounts of time doing as many feedback questions as I could get hold off. I would get the Bristol online database asap as I found it very good practise, flight plannning and genral nav. require lots of practise as you need to be fairly quick and accurate with the questions. It seems very daunting near the start of the ATPL's work hard but relax in between and you will be ok.
Best of luck.