If you're preparing for JEE Mains, it's smart to focus on high-weightage topics from both 11th and 12th. In Physics, give time to Thermodynamics, Current Electricity, and Modern Physics. For Maths, focus on Calculus, Vectors & 3D, and Probability—they often carry good marks. In Chemistry, master Organic Chemistry, Coordination Compounds, and Chemical Bonding. These topics are not just about scoring, but also concept-based, so practice well. Use NCERT for Chemistry—it’s gold. Solve previous year papers to spot patterns. And most importantly, stay consistent and don’t ignore your weak areas.