I just can't take history geography and english anymore

Why tf do we need to study these subjects??? Do we even need these in our lives? I know enough english to communicate with others clearly. I can't understand anything in geography and forget every chapter. No matter how much I study english literature, I can't get good marks. I think I'm having a mental breakdown. I enjoy science and computer so much more than these, but I didn't study science and computer for 14+ days because I was doing these stupid subjects. And whatever I studied in these subjects, I have forgotten most of it. What should I do? I am also having frequent headaches.