I basically teach mathematics and computer science to class 12th students in offline mode but due to covid i had to switch to online mode. I believe mathematics is all about practice. The more you solve, the better you get. Now there are two ways of studying maths first, you solve every kind of problem and then you can perform in exams second approach and the approach which I believe in is understand the concept and then you can solve any kind of problems related to that topic.
I have done bachelor of technology in CSE and i have also cracked google summer of code. That's my Mantra!