So my sd who is now 16 has runaway for the 4th time this year. Lots has happened this year.

we let her live with her biomom 7 months ago and they couldn't even last a month. she ran away. ever since anytime things start going wrong she runs away and says she going to live with her bm. She has been in two Mental health facilities in the last 6 months. where sd says she only says that to get under her dads skin. and says shes abused to get under my skin. (I was abused) so that's my trigger. but now she's gone again. we can't find her its been four days. I know I need to let it go. she beat the shit out of me that's why she can't come back to our house. but she was finally straightening out! making a's in her new school. had a part time job. I want to let it go. How come you can love someone like this? you know they don't care about you! The BM has no contact orders. I went to her house for her to scream at me. my husband was listening. hung up phone and called police I parked in front of driveway. the police told me to pull in front of him and as soon as I did she fled drove out. yet they can't do anything because even though we have emails from the two of them saying she went to pick her up its just hearsay so now 4 days later we are still in the same spot. no sign of her. im thinking of taking it to facebook SOMEONE... SOMEWHERE has seen her? but then what? where does she go? she has burned ALL her bridges. do I let sd just stay gone? What if something is wrong? What if because I didn't look for her sd found in a ditch? I may not be very clear on what is going on. and I pray all the time that God just find her. but its scary. and im concerned I know I may have the step mom name. and she looks at me if I were... but she is my kid. I spent the last 8 years raising her without a whole lot of help from anyone.