Care-giver by a care-needer

Please excuse the spelling....I have dealt with chronic physical and mental health disorders my whole life but I am having a pretty hard time right now and now I am also being needed.
I dont know if I am supposed to go through the whole list of things wrong with mne but within the last month or month in a half we have come to the point where we need to take my sister in as she is having a breakdown. We have always known sehe was bipolar because of how manic she always is and she fit other symptoms... We finally got her to a doctor because she went down on us and we have never seen that in her before and we were afraid we were going to losse her. She has always been on a high so to see her so depressed I didnt know what to do which is stupid because I have had major depression since childhood so you would think I would know something. Anyway, I flew to NY to stay with her and then we found out that she has not taken care of any bills, worked, or done anything for the last 6 months. I dont know how we didnt know but we didnt. So she is losing everything, her home, business everything.
I dont think I have ever posted and been this stressed but I am so afraid....we also were like oil and water when we were kids...so am i going to be bashed or put down in my home because I am not good at standing up for myself.
I just dont know how to take care of myself in this process
sorry

You used "we"; who else is there and can they help you and/or help take care of her? Or, can you move out with friends for the time she'll be around? She doesn't have anyone in New York at all that can be called on to care for her up there?

She may bash you around but now you've seen her down and can just point that out (as you exit the room/wherever she is). I think she'll be feeling pretty poorly, might not be the same person she was as a child and you certainly don't have to respond the same; it's your territory now, she left.