@smilie Is your sister aware of his treatment of you? Have you ever talked to her about how you feel? Do you feel as if you say something he will take it out on her instead? This may be the time that you need to distance yourself lovingly, and explain to your sister why you need to do this, for your own mental and emotional health. While that may seem pretty drastic, you have to put yourself first. I'm not sure how he has financially abused you as they live overseas, but that is also something that you would have to deal with.
Ginger

Hi, @smilie - That sounds like a very hard situation for you with feeling as though he is verbally/emotionally/psychologically and monetarily abusing you.

I wanted to suggest one resource that may be helpful to you to contact for some guidance https://www.thehotline.org/.

According to this site, this is the definition of domestic violence/abuse, which is broader than some may think of it: https://www.thehotline.org/is-this-abuse/abuse-defined/

"Domestic violence includes behaviors that physically harm, arouse fear, prevent a partner from doing what they wish or force them to behave in ways they do not want. It includes the use of physical and sexual violence, threats and intimidation, emotional abuse and economic deprivation. Many of these different forms of domestic violence/abuse can be occurring at any one time within the same intimate relationship."