Constantly put down

I live with my mom her partner (woman) and her daughter.

For instance today i was expressing my frustration that my computer will need to be taken in for the 3rd time in 2 weeks and i was getting pissed off with my computer. and the "woman" is like i dealt with it everyday and its ignorant people like you we kicked out of the store. First of all she worked at zellers stocking. thats nothing in common but whatever. and this is all beings screamed at me.. and then my mom and ...it.. go to walk in to the living room where i was doing my work (i was in the kitchen getting food) and i was like uhh because i thought they were going to sit in my spot where my comp was and then ..the woman is like *****ing at me we never get to watching this fu*kin* tv and i was like umm ok i wasnt saying that   and  she was like figure crap ut before you start talking. my mom never says anything she just *****es at me and stop talking stop talking stop tslking. thats ALL i hear. yet the b*tch gets to defend herself and speak her mind and i cant? my mom doesnt understand how manipulative and what a not nice person she is becaues she "loves" her... it disgusts me because my mom tolerates her treating her own daughter and herself  like crap. I dont understand it. My mom also at times is verbally abusive, and at times has physically abused me. i just cant handle it any more so i am moving out in sept to go to university, but my mom wont even talk about that. but i dont know how im suppossed to survive in such a toxic environment that much longer.