@afamelas Thank you for such a thoughtful response! One of the reasons I do not want to take Psychology is because I feel I need that time for self-study. Almost all of my classes will be IB, but due to expense I am opting to take AP tests instead. Also, AP tests are not as long or rigorous. I feel I will need the time to significantly study for biology and chemistry because the IB and AP tests have very different focuses. However, I already took a semester of Psych this year and my teacher expects me to continue on the IB course for my senior year. I do not want to disappoint her, but biology and chemistry are way more important to me.