Do I need to leave my environment?

I had a pretty tough childhood, my father was a violent alcoholic, in and out of prison, who beat my mum and brother, my mother was depressed and often absent and both parents tried multiple times to kill themselves.

My teenage years were problematic. I was often very unhappy and always felt as though I should have been the one in the firing line of my father’s anger instead of my mum and brother. I would self harm badly, starve myself, binge drink and eventually got into hard drugs and promiscuous sex. I had no self respect.

I’m 21 and honestly I thought I would just grow out of that behavior, my mother always told me I would. But I really haven’t and now I’m not sure what to do. I still hurt myself at times when it feels like I might explode because I feel something so much. I’ll flip from suicidal to euphoric in hours, sometimes minutes. I will often be in a social situation and suddenly get hit by a wave of anxiety or grief and have to leave immediately or hide somewhere.

I am completely incapable of making decisions as my thoughts, feelings and pretty much my whole personality changes around 3 or 4 times a day. I’m not really sure what kind of person I am actually.

I am still promiscuous sexually however it has escalated a bit. I often sleep with inappropriate people e.g. my boss, a married man or woman, people that I am not attracted to etc. I’m also extremely prone to sleeping with violent and abusive men and beg them to hurt me or humiliate me. I often obsess over people quickly and then hate them when they disappoint me, this disappointment may be due to anything from an offhand comment I didn’t appreciate or a bored look in the eyes when I’m talking to them.

I also have strange beliefs and thoughts sometimes. I’m very paranoid and believe people are spying on me or plotting against me; I take every single word that leave peoples lips and read into it over and over. I believe that I have magical connections with people, maybe because I have strange dreams about them, or my hands always shake when I see them etc.

I see these things as definite signs that I should be that person. I talk to myself and often feel like I have many different people in my brain with different personalities telling me different things. Every decision I have made has been made on pure impulse, which leads me to my question.

I quit my job and moved to China about 6 months ago. I’ve never seen a therapist except once when I was 13 and was in hospital because I drank a lot of alcohol, and I saw a man but my mum told me I would be taken away if they thought I was odd, so I mostly lied a lot.

Things are not getting better, I don’t feel like I can fix this, I can’t maintain relationships and my behavior has left me physically scarred and bruised. From all the research I have done, China does not have a great mental health system. I don’t speak Chinese well and don’t have the money to pay for a private English speaking therapist. I really like China and don’t want to leave but I can’t live like this anymore. Is there anything I can do for myself here or do I need to return to England to fix this?