Fight for what you want. There's no point being unfulfilled. After all, at the end of your life, do you want to be happy about all the things you have accomplished, or full of regret about the things you should have?
You can say I'm family and you can say I'm loved but I know that you talk poorly about me and that every nice thing you say to my face is a lie. So I have to distance myself from the toxicness for my own sanity.