IPMAT PREP HELP

Hello, i am currently studying in class 11 and my stream is Humanities. My 6th subject is Maths because I also wanted to prepare for ipmat. I am pretty good at English and Mental Ability but maths is not my cup of tea. I have solved previous year questions and English and Mental ability are quite easy. I can do 35 - 40 qs of English and 20-25 of mental ability .How do I prepare for maths? I have been doing pyqs since the starting of 11th but I can't solve a new question. I am also worried about the interview. Please guide me here.