Deportation threats

Hi.. I am 7 months married to my turkish boyfriend for the first 3 months it was like a dream marriage not until lately he often threat me of deporting back to my country. Our marriage was done even with my expired visa. We got our marriage certificate the so-called red book but they say I have to go back first to my country and then come back here to register our marriage to the civil registry here in Turkey.
But until now I haven't gone back to our country and come back here with a new visa yet. Now, my "husband" is threatening me always about divorce and deportation whenever he feels like. Which of course give me discomforts here because I want to save our marriage but yet I reached to my limits. I feel like giving up too. I do not want to stress my life with non sense people. Could someone please help me how shall we do our divorce procedure? Is it needed considering that it is not yet registered? Can he call the police immediately and come to deport me? Can I take back my own money which we deposited in the bank under his name? How can I protect my life here in Turkey against his scary threats about my life here considering that I overstayed my visa here. Please I need your opinion.😭