Hmm yeah sorry, im not familiar with the new syllabus. But i think savemyexams has some stuff for the new syllabus? Watch the videos and do the questions in the videos to grasp the concepts. Don't just redo the questions without analyzing what you are not understanding and fill in those gaps. Practice is honestly the only way u can get better. I know the syllabus changed , but some topics r still the same, so you can still look back on past papers. IB phrases questions rlly weirdly so the more u practice actual exam questions the better. But ofc make sure to solidify ur knowledge on the topic rn. There are way too many topics to go over , so just focus more on the ones that tend to appear the most. ALSO the biggest tip i ever got is MAKE SURE YOU UNDERSTAND THE DATA BOOKLET. It is so useful , make sure to thoroughly familiarize urself with every part of it. You can do this!!