How do i stay calm when it feels like I'm under an attack by a Pregnant woman?

My perfect older sister who went to Europe and an out of state for college with a huge refund check and no left over expense to pay, no loans, got knocked up and is now living at home in a not so perfect house. However I am glad to say that she graduate with a bachelors in time at her graduation 5 months pregnant. I am 20 years old, i just transfer from a university to a community college near home and I am in transition to go to UT Austin. In the mean time I live at home but am looking for housing. I am going to get me an apartment so that I can get back into the study zone because I am lazy if i decide to stay at home and it would drive me crazy to stay in the house with a crying baby 24/7 plus schools, studies, and a job. I would never get any rest what so ever. My prego sister is going through a pregnancy b**** stage where she attacks everyone in the house, rearranging their lives for her benefit her own self. And she's mean, she keeps believing that she can get an apartment with only 1,000 to make it own and take care of her baby by herself but I can't. She claim the only reason why i don't get my own apartment is because i need someone to watch my kid while i'm gone. Yet she says to me realistically your never going to be accepted to UT austin, your not going to have a job, and your not going to get into any type of apartment. On top of that she keeps saying other ugly and hurtful things to that are below the belt and is very provoking to me but I am force to take it because I will NEVER hit a pregnant woman. She fights unfair but what am I suppose to do? Say, hey your pregnant self have no chance in getting your Master's? Or hey if you don't want to have to live in the same room as me with your baby then you should have wore a condom? Or hey i hope your baby don't look as ugly as the way you act. What can i do in the main time to avoid being around her. I don't want to even be in the same room with her yet we live in the same room at our parents house. I am going to move out whether she believe so or not but what can i do in the mean time.