Newbie my score wasnt quite high tbh and yeah i def have some regrets... but I def recommend finishing the whole content asap like by the end of term 2 be finished with the whole content and just grinding as much exams possible i did abt 36 practice exams but it depends on you .. if you feel confident enough or not some people do only 1 practice exam and they get a SS of 40 smth whilest others may do 20 or 60 and make sure you do ur practice exams right so basically doing as much as possible in time condition and then marking and finding areas of weakness and basically try to improve also give urself feeback after each practice exam
also make sure to have a high ranking in ur sacs this is honestly SO CRUCIALL
I recommend doing as much questions possible before each sac. when i did bio last year i was told like a week before my sac or two, so during that time make sure you are doing alot of sac practice and marking them and also ai exists you can also use it to give you practice sacs
alsooo throughout the year just keep revising past content by doing questions and i also liked doing mindmaps which i think def helped me with retaining the content as bio is quite content heavy this is my last alsoo since i've said it abit too many times .. practice doing questions and practice sacs throughout the year in time condition so when it comes to doing practice exams ur not running out of time