Answer:

Physics is an easy subject.

And if its not easy then the best way to make it easy is to understand it , not keeping any doubts in your mind .

Physics is a subject which includes reasons behind the things we do in our daily life

{and many times the things that we don't use in our daily life (≧∇≦)} .

The answer to your previous question : The only way to improve in a subject is to practice more and more. ^_^