Put the effort into your projects, find the marking rubric and make sure you are definitely covering everything.
Outside of class try and do practice questions (although leave the past papers for closer to the exam) and really try and get your head around the content. YouTube etc. has some good resources. Ask your teacher questions, and also try and think beyond the basic course content (I.e. what would the combined effect of several things you’ve learnt about be, or what are the real world applications). Try and help others in class too - the best way to learn things is explaining it to other people!