How to get a divorce from a rutched wife

I have been married for 5 years now. Issue is that my wife is not a normal thinking person, has a negative opinion about everyone in my family including myself from day one & has been recording all the conversations. She has a problem with everything everyone of us do. She has a wired obsession, wants to unnecessarliy start a fight, nag & extend endlessly. She is not interested in food/dressing/career/travelling etc. only wants to keep on harassing me & my parents using vulgar language & false accuses, call all my friends & relatives & complain against us. Most importantly, in soiling our reputation, she even tried to blast the gas cylinder. I have tried all possible ways to make her happy, stopped connection with the only sibling, old parents & bit a separate house but on the other hand she is jealous & unhappy about my success & hasn’t tried a bit so far to improve our relation. Every day she starts off asking me for a divorce.. now after 4 years of marriage & all the drama, I agreed. She immediately changed her stand saying you are the one who needs divorce, I shall ensure you will never get a divorce. Now the discooperation, harassament & mental torture has become very obvious. She even walks around the house almost naked just to embarrass me & my parents! She is not willing to come for mutual, not agreeing on a sum, not coming to lawyer, but wants divorce & is not ready to give-in to the relation! I have now vacated my new house, let her live there herself & moved to my parents’ house. She has lodged a complaint against me that I have abondoned her! I don’t know what to do to get out of this marriage. Seeking your advise.