Struggling with Math in Preparation for a Physics PhD: What Should I Do?

[astro2cosmos]

hey 2 all I'm from delhi, I've done BTech in automotive design engineering but i want to do Integrated PhD in astrophysics, & for this now I'm preparing for GATE, JEST physics. but the main problem during preparation i face maths i.e I'm not that much confident in maths wherelse i love physics.while study maths i can understand the method but cann't follow up with it for any new question.& i know that until my maths is not strong i cannot do anything in physics.what should i do please help me
byeeeeeeeee//////////

 

[George Jones]

Work through Mathematical Methods for the Physical Sciences by Mary Boas,

https://www.amazon.com/dp/0471198269/?tag=pfamazon01-20.

 

[Troponin]

Work through Mathematical Methods for the Physical Sciences by Mary Boas,

https://www.amazon.com/dp/0471198269/?tag=pfamazon01-20.

I always have this near me. I've actually used it as my primary study guide for courses that used other textbooks...
For some reason, Boas just seems to click with how I think. I don't know if I'm alone in this though.