The number of AP courses you should take during junior year depends on your academic strengths, interests, and how well you can manage the workload. It's important not to overwhelm yourself; quality over quantity matters. Consider your ability to balance AP courses with other commitments and ensure you're still able to excel. Some students take 2-4 APs, while others may take more or fewer based on their individual circumstances and academic competitive aspirations. It’s better to take a few and nail them than taking a full load and just doing average.