Suggestion for divorce and want a half share from father's proper

I am a girl(26) and have four members in my family as my father(59), younger brother(30) and step mother(48).last year my parents choose a guy who was not at all fit for me as he had many relations with other girls including his bhabhi. I got to know about this before 7 days of my marriage, from that same guy as he told me this as he was drunk, yes he has some bad habits like this much more.after knowing this I denied to marry but my parents forced me to do so as every arrangement was done, and they promised me that they will help me if any problem will occur.I agreed and did the same, but after reaching his home they started to torture me mentally. and again I got to know about his bad habits from his mom itself what I had already informed my parents earlier and then I decided to leave his home before 4th night and did the same, my parents took me to home , and then at my home again my parents started to torture me as they wanted me to stay at that guy's place with adjustment whatever may be the situation and that family was.now its already crossed 1yr as I requested my father to make me free from this so-called marriage but he denied to do so rather he told me " you left his home now you do what ever you want", and not supporting me at all.. and that guy and his family started to blame me after I left his home , they also said very bad things about my character , and now after 1 yr they again harassing my neighbours by relating my character to them through some security agent.. please suggest me what I can do to get my image back what everybody has ruined as my own family is not supporting me , and I don't have any money power or man power.. thank you