I want divorce from my wife

I got married in feb2018. I'm OK with my wife till 5-6 months. But now I'm unable to continue the life with my wife anymore due to mental cruelty. She used to blame me in front of everybody & would say sorry after some time. This was happened multiple times. One side she will say that she hate me & after some time she will say that she likes me. She is expecting a luxurious life which I can't afford. I used to say that we should be happy with what we r having. With the repeated sayings of that She is not happy with me, I was broken in my heart. She is a kind of making blackmail that she will go to police stations by making false allegations on me or she will suicide. All the relatives are obviously trying to convince both of us, however she will say that she will b OK but I'm not ready to accept her in my live anymore. My reasons may b silly but I faced mental stress & currently I'm getting suicidal thoughts instead of my life. I'm not in a position to say that I don't want to live with her anymore because All the laws r supporting women. Please help me.