>>2 youve got good words but in this case of an Indian background or similar, words never work. In fact it does quite the opposite and even results in getting kicked out of the house, as much as what is said is right. Believe me I got told off today for being rude and inconsiderate 'cause I like tea more than coffee lol...no defiance works.
The only thing you have Dragon is time and patience. I've become an adult and accepted things to be, I can't enforce Western values on someone who's lived their whole life in an Eastern culture. It's like getting an American to become a Saudi Arabian, not happening (also kind of offensive to them).
I'm not sure how old you are but you and they'll come to realise that deep down there is some love even if a little. A parent also prides themselves with their child but I'm sure it's quite a bit of pressure for him or her. You get compared with other people and they expect you to be the best, to bring the trophies and ribbon.
You can't open up nor can you obey, what's left is for you to be calm, I guarantee it's the best trick up your sleeve. Also to act in an unusually appeasing way brings to light how ridiculous their ideals can be. It's all about time and patience in the end.
I've got perfect reference material for this kind of family. It's a play called Death of a Salesmen by Arthur Miller which depicts a father who wants his sons to be something they cant be. The ending is a bit sad I should tell you but it really puts to light what happens when you're forced into a situation not suited for you, or you force yourself. Maybe even watch this with your family if they're into watching movies or so.
And you don't need to do drugs if you're not on the web, just explore outside it'll really relieve you of family life sometimes.