I am a 21 year old girl from India. I am very much depressed because my elder sister feels jealous of me as I am studying in good college and she didn't get admission anywhere. She always play clever tricks against me. Last year she made a fake fb account and gave my number to many unknown guys, and now she sent indecent messages about me to my fb friends, and tell them my personal matters. My parents don't say anything to her and just say to me that she is out of control now.

Please tell me what to do? I am tired of all this. I feel so ashamed in front of my friends. My parents say that you also do what you want to do against her but what should I do? I am getting so arrogant and irritating day by day. I feel so tensed every time that I am so unlucky that I am having parents but still they can't stand for me. They know everything but my mother only curse her, and I feel so bad that even they both talk to her very nicely.

Please suggest me what to do. Only idea I have is to commit suicide.

Foolish to let the immature bad behavior of a kid drive you to suicide, or shame among your friends. That's a bit of immaturity also. Your parents gave you permission to deal with it the way you see fit so file harassment charges and fraud with the proper authorities, and get a cease and desist order, with a warning that any more BS will result in you pressing formal charges.