Want divorce from my legal wife

It was a love affair among us...which started from 2014. But she and her family pressed me for marriage from then. But I had severe economic issues so i denied. Then they pressed me for court marriage or else they blackmailed me that they will take police actions against me. Falling under pressure i had to do court marriage with her in 2015 in presence of their family members and kept it secret from all my family and friends. Her family members assured me that i won't have to marry her right then.From then she had been living her house and i am in my house. None of my family members know about this secret marriage. I told them that it would take atleast 4-5 years for me to get economically independent and bear her all responsibilities. Then they said all fine. But now they tell me that i have to take her to my home and accept her as my wife . I feel trapped in this marriage and feel suffocated from her and her family members all the time. Right now i am in a very unstable situation. We never lived together even after her marriage. There are also vast inequalities among us which i understood long back. Please suggest me how can i get out of this marriage which has almost no concent of mine.