I'm a queer person who left an abusive man when my son was young. He's still abusive and that will never change, but I decided from the beginning what my values would be; that I would do my best to foster a good relationship between son and father, never talk badly about his dad in front of him, and do my part to keep adult issues and conversations away from him.
My ex is persistent and I have very few resources to fight him, so he has more control than is fair or just, but I'm still MUCH, much better off than I was when we lived in the same house. Let me tell you, I'm always relieved every single day I wake up that he's not in this house. Having the freedom to just exist in your true identity and not have the pressure of threats, blackmail or coercion regarding sex is a basic right. When you don't have that, it's no wonder you feel suicidal.
Give yourself the chance to see what life is like. You're experiencing the awful parts of homophobia, but you haven't had the chance to experience the joy and connection of queer friendships, the freedom of living as your authentic self, or the excitement and affection of real love.
I don't know what the future could hold for you, but these things are atleast possibilities if you stick around and start on a journey to living on your own. And you'll be following in the footsteps of many queer women who have done it before you and will be cheering you on.