yoyo, here’s the deal. i think its high time you speak to your parents. if you absolutely positively cannot speak to your parents then i think you should call someone professional and discuss this with them. feel free to reach out to Met Council 212-453-9500.
In addition, if you carry a cell phone , take it out and use it when you are anywhere near these people. either call a friend and talk to her for support or just a change of subject. if you have no one to call at that moment just open the phone and fake it.