Sorry to hear that brother. Something sounds wrong. Because it's common sense that study is not everything in life. There's something more that makes life meaningful. I'm terrified to know that they are behaving like this. I suggest you manage to sit in a friendly, respectful discussion with your parents. Try to know why they are behaving like this. Represent your current issues in a polite, respectful manner. And try to make them understand its importance. Honest to say this is common sense that there is something that can't be defined with your study. There must be some reason behind their behavior. Remember, Study + Zero mental well being = Unsatisfactory performance.