Dear Student,

Don't worry, you can improve your maths easily. There is no such an big issue. Maths is a very interesting subject. Once you get an interest in it then everything seems so easy. The first way to study math is learning formulas. Before starting any chapter learn all the formulas 2-3 times. Also learn some theory, before the starting. Don't stick to too much theory. Just learn upto that, what is used in solving questions. Solve as many problems as you can. More the problems you solve the more you became good at maths. And also follow some good books for problems like RD Sharma Mathematics, Mathematics by Cengage publications etc. Also, NCERT is a good book for maths. Its miscellaneous exercise has good questions.  Solve the examples also.

Hope this helps.