First thing to do is py to God to let you understand then start from the basics.. Further maths is just like physics so use physics principle you will have problems on diffrenciation and matrix buh i ca help
Wow your case reminds me of m self .. I had to find people in my arean i knew are good when it comes to further maths also you can go for people in University you know are good in further mathe matics ... They will tutor you
GeigerEOK