Hii Gireeshma,

Physics has two parts one is Mathematics and other is conceptual,Mathematics is used to express laws of Physics, so One thing You should keep in mind is that In order to make Physics a strong subject You should be well aware of Mathematics, What is Important in Mathematics For Physics is Coordinate Geometry, Calculus and Vectors are the most Important for Intermediate Physics. Once You think that You are good at this Topics Now comes the conceptual Part You should take help of Good reference Books such as HC Verma for Intermediate Physics and Klempner and Griffiths for Higher Level Physics, When You devote sometimes to this kind of Books You will understand the concept, Now most important is that You can not understand the concepts of Physics Unless You mathematically analyse them and solve Problems based on that So Now practice Lot of Pro=blems and You will master the concept, that way Physics will be simpler for You.