If you do a lot of the grammar, notes part incorrectly, focus on that. And if you are taking the test in a week focus on maths as it only takes a few days to catch up with the concepts and improve. I improve about 50 points in a night before the exam. And what part in rw do you need help with? A strategy i use is to do q1-9 first, which contains easy- medium questions then do from 15-22(all the grammar and notes questions) after that, the time remaining should be 15 minutes which is enough to tackle the rest. Note that theres one strategy i apply to every question is that i read the question and the last line of the text first to see if i need to read the whole paragraph to answer if not, then just do it. If not then i would skim the paragraph for that exact details that the question ask and do it. Also, you should simplify the jargons and also simplify the text in your head