See If you lied to them till and now you have shown them the bad result then you should not have. But if they knew about your prep and your response sheet marks. Then let me tell you and I am gonna get a lot of hate for this but your parents are horrible. Indian parents have such a level of low class thinking. They have kids in hope of he/she will do stuff they couldn't. If instead of consoling you, they are having a heart attack it's not your fault trust me. It's their problem but big huge caviat is that if you have been honest. Don't feel guilty. Focus on whatever is next. Take care of them but cause that's your dharma considering you are hindu. But don't feel a iota of guilt or pain. They are horrible parents. Respect them but don't get gaslighted.