Short backstory:
Last year in June, in year 11, I decided I wanted to study Pharmacy (need around 80 atar) after I finish school, however, I didn't choose chemistry as one of my subjects...fast forward, the head of school accepted my request to join a chemistry class. I did well in chem throughout the rest of the year, although I never revised the topics that I had missed out on during the first two terms (I revised the basic concepts such as the periodic table, balancing equations, polarity etc..).
I started school today and I am learning about fossil fuels which is fine at the moment, I wanted some advice on how to use study effectively, make proper notes, and whether to write my own notes off of the textbook or use the teacher notes (using Edrolo textbook atm however I have read on other posts that the textbook is not so good compared to others?). Should I revise the topics I missed now? Or should I wait until the end of this term? (I missed out on organic chem, water as a unique molecule, polymers, and acid-base reactions). I would like to add that the topics that I am studying for the upcoming SAC consists of carbon-based fuels, measuring changes in chemical reactions and galvanic and fuel cells.
I really want to do well in chemistry this year as I want to prove to myself that I am capable of getting a decent study score regardless of missing out on half the year. My teacher believes I am capable however he doesn't know I never revised those topics last year (I got really burnt out by the end of it).
Hoping someone can give me some advice 
(Sorry the structure is all over the place I am extremely stressed)
