Hello,

Physics is considered to be the toughest of the three subjects by many students. For Physics preparation, you should keep your concepts clear and have proper understanding of the topics. Refer to good books. I would suggest that  don't just focus on rote learning try to understand the concepts. Learn tricks to solve questions, learn to use logic in using the formulas, practice questions. Give mock tests and analyze your result. Know about your strengths and where you are lacking. It will also help you to enhance your speed.
Stay positive and focused, physics is not that difficult subject.
Good Luck!