sir,

i find it very difficult to do problems from electrostaics and current electricity.

I tried learning it again and again and do problems.Still am not able to crack.I think my basics are not thorough.Can you help me?

I found your problem similar to me ,when i was at this stage. What i did was first i tried to clear my concept because physics is all about clearing concepts and reading the theory by heart. I personally recommend you the book  “Halliday-resnik-walker” for clearing your concepts, and when you are clear with it try to solve “HC Verma” numericals. The “Halliday-resnik-walker” mcq are also very interesting. Never feel physics as a burden enjoy the nature and enjoy the physics..