How to handle harrassment from boyfriend

I am 26 year old female working in Hyderabad. I have been in a relationship with a childhood friend of mine from the past 8 years.we belongs to different castes. He is working in a finance company and earning almost half of what I earn.the problem is he is very possessive and always doubts me for every moment.he asks me to make a video call where ever I am.and my times he took money from me and never returns.i used to give him money from my credit card and he never thinks to repay me.he speaks very bad language which I could not really take. He takes alcohol daily and roam in the road till night and then calls me in the midnight.if I don't pick the call for whatever the reason he immediately calls my hostel warden or my brother.he used to abuse me verbally with very foul language.many times I tried to broke relation but he never make that happen.i have my mum and brother and I don't want this suffering should affect them.i want to get rid of him.i really tried very hard but could not come out .I really feel like dying sometimes because of his torture. he love me but also harass me please help me to come out from this..