Reason: Science students are most afraid of physics and mathematics, so if mathematics and physics are really ok, it is not a big problem to improve their grades. To tell the truth, chemistry is not too difficult. The key is to memorize several equations and do several questions flexibly. There is basically nothing to worry about. This is a fact. If you study science, I suggest you memorize biology well. As far as my personal experience is concerned, learning biology well is basically memorizing, of course, by doing problems.

After reading your description of your language, politics and history, I suggest you don't choose liberal arts, or you will find yourself abused in liberal arts.