Just met my birth mother... Is what I'm going through healthy?

I recently found my birth mother who gave me up for adoption at birth. I was so excited to find her and hear that she has always regretted her decision and has been looking for me. She told me how she's destroyed her life after having me to prove to the world that she was a piece of shit for giving up her baby (her own words). I flew down the same week I found her after talking on the phone every day.
I've been here for two weeks now, and things are starting to surface. My mom seems like she can't get herself on track, which I understand. I'm staying at her mothers with my half brother and she's loosing a custody battle for my other half brother. I don't get to see her much. I noticed right away how often she consults her mother for things. Everything really. didn't think much about it, just thought it was a woman who has lost self confidence. Turns out my mother is borderline schitzophrenic and bi-polar.
After hearing this, I don't know what to think. She promises me she's going to have a house for us in 2 months, but I'm not sure if i can believe her or if I'm getting boxed in. There are so many people inside my mothers head and she does bad things and convinces people it wasn't her.
Does any one have experience with living with a schitzophrenic person? She is my mother, but she's also a stranger. I want a relationship with her, but I don't want to put myself in danger...... any advise???