I'm so broken that I don't know how to fix my life? Please help me?

I was emotionally, verbally & psychologically abused by my exhusband & my 2 youngest children(I have 4 kids). I was at peace, free, but so alone I let my oldest (25) pregnant child return home she's due 8/18. My youngest daughter (19) (has psych issues not treated) got hit by a car last month, was too high functioning for a rehab hosp for physical therapy. Oldest daughter guilted me into letting her come home for pt. Should've listened to my gut, youngest one flipping out, I walked away but should've called 911. Instead my oldest calls 911 not once but twice on me for minding my own business & just trying to rest.She broke open my bdrm door after 11pm Fri night cuz I didn't want to deal w/her so I blocked the door & she calls 911, pd & fd clear me. Get up yesterday am go out while at walmart she calls 911 again cuz I didn't say a word, I'm told go voluntarily for psych eval even though sounds like domestic issue. My 1 day I went out alone other than Dr.'s since my car died last yr I end up 6hrs in hosp.