Fed up...what to do?

So, my best friend and I live together. I've always known she's been the 'queen bee', but now that I am around it all the time, I can't stand her attitude. Before we lived together, I was always able to brush it off. But now I can't escape it.

I end up letting her get her way, all the time, because even if I do stand up for myself, I seem to find a way to seek out validation about my 'bad ideas'. I'm definitely a glutton for punishment. She is used to me be being very depressed and down on myself, and over time has inadvertently taken advantage of it. But now that I'm successfully getting through DBT and learning who I am and am gaining confidence, she is getting more defensive and controlling. And although I'm getting better, it still take a lot for me to confront an issue. So, I'm not sure what the next step is.

What I WANT to do is become very passive aggressive. Become 'better' than her, skinnier, happier, make more money, etc and rub her bleeping face in it, like she does to me. Such sweet satisfaction. I am having fantasies about screaming and getting into physical fights with her. But, I know this isn't right.

...but what is? Buddha, help me. I'm tired of being walked on, but I also want to make it clear that I'm done with her bull.

Make a new best friend.

I've realized I'm not good at confronting people, so I try to avoid myself from situations. But if someone annoys me too much, then done, I'll go make a new best friend.

Being skinny is not healthy, if you be skinnier than her, you won't be able to kick her and beat her, pull her hair, smash her face against the floor and all those fantasies you have.

Also doing those things, might land you in jail, so you won't be able to earn money and go on a world tour, scuba dive in the australian sea, or ski down the Alps.

If the room mate is harrassing you, ask her to leave. Or leave the room, get a new house.

You have to stand up for yourself, there is no virtue in suffering.