I certainly think so. My best advice as a year 12 just about to enter exams would be to use the summer holidays to work on methods if you really want to excel in the subject.
It doesn’t have to be too much work, but if you use the textbook and/or Edrolo you could get through most of unit 3 before even starting the classes.
Personal anecdote; I sucked at Methods all the way through year 11, averaging somewhere between 40-60% throughout the year. After knuckling down hard though, I’ve managed to bring my scores up a ton in preparation for the exam, which you could definitely do too.
My biggest regret in regards to methods would certainly be not doing some coursework on the holidays. Strong students from my school generally finish the Methods course (and other subjects) in the June-July holidays and use the rest of the year for revision and practice exams. I guarantee that if you did that you’d have a fair shot at a raw 40 by the time you get to the end of year 12.