Kindly advice me to proceed further

Hi there, I married before 5 years. From the day one of my marriage we have very less understanding between us. she always tried to humiliated me, my parents and our reputation in society. I have a 3 years kid as well but me and my parents also have rights to live peacefully. We are not in talking terms so mutual divorce will Be impossible , she is a govt employee and i work with a group of people with small share of partnership. Now i want to move ahead in my life so, How can I get DIVORCE from my wife?? And also she has a very negative mind set so she can counter any false litigation on me Or my family so how can i protect my family for this. Me and My parents are suffering a lot due to humiliation and i can't see them like this but as my kid is so small so we stay calm and dont talk to her at all and many times she uses my kid as a weapon against us to dominate us Emotionally. (NOTE: We haven't registered our marriage to any office or we don't have any marriage certificate or documents which proves that we are married.) Please help me through this. Thanks.