Stress problems

My problem concerns the matter that we students are having too much stress. The stress accumulates from school and tuition. My parents have a high expectation of me and this does not help my emotional levels. Naturally like all good kids, I want to meet up to their expectations but sometimes it could be tough. I tried to talk to my parents but they come up with words such as 'This is all for your own good. You are not mature enough to make coherent decisions. We are trying to pave your road to your future.' And we ended up arguing. It pains me to see the hurt on their expressions when I tried to defy them. What should I do so that both sides could settle this matter properly?