I am a class 12 student. I am being unable to put required concentration in my studies. After studying for only a small time my mind is becoming blocked. I have been facing this problem for a long time. After every exam I think that will do better the next time but every time this same thing happens. My parents want me to become a doctor. But I don't where I will end up if things go on like this. I often break down thinking of all these. Can you help me?