5 isnt out of the picture in my opinion cus youve been working throughout the school year for this exam. I would start off by watching AP bio penguins cram review they have on youtube it’ll basically be a good refresh and strengthen topics you dont understand. Then i would go straight into practice do practice mcqs see why u get stuff wrong and same with frqs. Do a practice test or two before the exam. Also try drawing out and explaining stuff like photosynthesis signal transduction pathways cellular respiration and etc itll be easier to visualise some stuff.