Yesterday in class we talked a little bit about what to do with all the vocabulary that comes up in the reading texts and the extra handouts I give you.
From the Advanced Level onwards we still learn some grammar, but basically we'll revise what you already know and we'll mainly focus on your vocabulary to polish and refine your English. Get used to using a highlighter to mark all the new expressions you come upon. After each unit, revise everything you highlighted and copy it to your notebook. That way you'll revise your vocabulary after every unit and studying won't be so hard at the end of the year.
I know it takes time, but believe me, it's really, really worth it, and you'll be more than happy to have that list for the final exam in June. And for all your subsequent years learning English. Take my word :)