Hello. I am new here today. And I need help. I am interested in physics and I want to participate in the Physics Olympiad, but the level of the Olympiad in my country is so high that without expensive teachers, it is unlikely that I will even pass the first stage. But I want to succeed. I want to achieve my goal. Although I cannot have a teacher, I am rich in resources.... Books like Basic Physics (Belt), Conceptual Physics . General Problems of Irodove, Selected Russian Problems, and Feynman Physics, etc. I want you to help me and tell me how to study for a high-level Olympiad like Physics in my country. And I only have 8 months. I also have some knowledge of calculus and I am in the 10th grade. I want you to tell me how I should study to answer questions like a PhD student. Thank you..:)