How can i learn all the specific vocabulary that is needed for the best marks?

A great tip for learning vocabulary is first of all, try to start learning as soon as possible and by learning a handful of words, or even just one word, every day will be a lot easier than attempting to learn a whole list just before your exam. It's also great to find out what your learning style is, i.e: if you are a visual, auditory or kinesthetic learner. If you manage to find this, then you can create exercises that you know will be tailored to what you are good at!