Tips for MA (pls help me🙏)

I have my FMA exam tomorrow, I’m done with the syllabus and been only practicing and doing Mocks for the past 2 days, I’ve done good in the study hub practice questions but terrible in mocks, I solved a mock yesterday and got like 51. Sometimes my mind goes blank after looking at a question, I donno how to proceed, Standard Costing sucks for me, really confused regarding the relationship of Variances…pls tell me how can I pass (My friend gave the exam a few days ago, he passed but said the paper was really difficult)