Regarding Divorce After 15 Years Of Marriage

I am really in painful situation as my wife is not supporting in good life due to poor sexual relationship between us. We have two daughters but since last few years we are never spending time with each other . whenever I try she refuse to do so which leads to me a very different situation. I am going in depression . Also she had lots of complaint against my father and mother which I will not be able to resolve. My Mother and Father is living in Dhanbad in my hometown .Now my Father is retired .We are living in Patna . My Wife is doing her MEd and I am working in a bank . I am not able to settle the difference between us and now it's become very painful to me. please suggest as whenever I go and try to discuss with my wife she started sharing the problem with me and family and push me to go for divorce . I am not able to concentrate on my work also