Hey Neenah,
I totally understand where you are coming from. Chemistry is definitely a challenging subject and many people are put off by this. If you lack motivation to study for it, you could possibly use a different method and mindset to approach the subject. Instead of thinking "I have to do well for chemistry because its vce" maybe try telling your self that "learning chemistry will broaden my understand of the world around me." The pressures of VCE is often a massive distraction for a student to really enjoy the subject that they are undertaking. By having a different perspective and goals for a subject, it may help increase your enjoyment, thus making you more motivated to study for it.
With study technique, I would recommend really trying to understand the concepts rather than rote learning them. Mindlessly reading and highlighting a book can be time consuming, ineffective and very mundane. Chemistry is a subject that also requires visualization of phenomenon and concepts. Although a textbook is helpful to an extent, it is limited in its presentation of diagrams or concepts. I recommend watching chemistry videos on youtube, khanacademy etc as videos often contain animations which is far more effective than a textbook for representing visual concepts. Watching video is also a new method of study which can be more interesting than textbook reading.
Don't worry too much about your current predicament. I'm sure everyone has been there at some stage including me on many occasions. I hope this helps and best of luck for the year!!!