Hello, I am an university student currently studying BioChemistry in The University of Hong Kong. I got 5* in Biology and Chemistry in HKDSE of the year 2017 - 2018. Although my result may not be the best, I did not attend any tutorials during my studies, I rely solely on my own notes, so I can give you advice on how to study effectively based on my own personal experiences. Moreover, since I am doing Biochemistry, I have further my understanding in a lot of Biological and chemical knowledge, so that may be useful for your understanding of this subject.