Enjoy school; enjoy learning. Don't fall into the all-too-common trap of focusing too much on the daily drudgery of testing and related stresses. It is easy to complain about being too busy and too stressed. The teachers aren't out to challenge you unnecessarily. Think of this, the more one understands a subject the more one enjoys studying it. Not to mention: much of this material is actually beneficial to know and understand for our future careers (and life in general).