Maths

Taking maths was the worst decision of my life I have my exam on 9th and honestly I need to pass I know section C well probability ho jata hai matrix thora thora differentiation meh bhi basics ata hai I just need to revise them aod integration and differential eq I have absolutely no clue about uske upar se I have my bst exam on 11th toh I need to study bst with maths too because I need to score well in that subject .. Any tips honestly I want to get anything above 65 and how do I manage bst and maths together 😭😭