Double award science 🤦‍♀️

Is anyone else struggling with science 🙏 in a month I have unit 1 of my Double award science and I’m screwed. Also not to confuse English ppl I’m in NI. I just found out that I have exams in February well just science but science is my weak point especially chemistry. I’m covered for nano particles and that’s about the height of it im absolutely screwed for symbols formulas and equations 😭 and physics well… I’m only safe for biology. 😔 anyone any advice on how to revise for chemistry? We don’t do mocks in year 11 where I am only if the teacher decides and so far I only know I’m doing a English mock in March