Can i file for divorce and get the maintenance for my living?

I have been married since 8 years, my in laws has a great influence on my husband and they have been mentally harassing me since day 1for small little things, like sleeping on the floor during periods, keeping fasts etc. i thought its just a beginning , probaly my husband would understand me in future. He is an army officer an educated person, but he has always been into black magic and all, however i never complained, i never realised that he s doing all this to control me, as i started asking him about such things. Also we lived separately for few months as he started defaming me, because of his job he hardly stayed with me, and also never took me along to his postings, he also gets drunk and pee and shits in bed, and that turns me off, i cant make any physical relations with him and he starts complaining, he calls n abuse me, now am not staying with my in laws, but my husband tries to molest me mentally over the phone. I tried commiting suicide, which is a crime, i know, but he has tortured me so much that i couldnt take it anymore, my family s not financially strong and cant support me, my family s not in favour of my divorce as they think that he will not give me any maintainance n my future will be ruined, please suggest me what is the right step to be taken?