<human>: Could you distill the essence of the text into 1-3 sentences?

Yesterday, I received a text from my 17 year old gf (I've just turned 18) saying that she just took 5 bottles of sleeping pills and it's done now. Bye forever. She has tried to overdose on sleeping pills several times before, but only enough to put her out for a few hours. Each time (I believe) because of some petty argument with her parents. I had tried calling her house and relatives so that she could get to safety. When that failed, I called an ambulance to where she lived. I was at work and don't really have a form of transportation of my own to get to where she lives, which is miles and miles away from me. That afternoon, her sister messaged me this on Facebook:

good job dumbass...they just might take her to child protective services now bc of an impulse reaction...they didnt even pump her stomach...you just played into her attention seeking game...and my parents are probably in trouble over bullshit

To which I said:

I wasn't thinking. She told me she had taken BOTTLES of pills. I had wanted to contact you or someone at home, but if she wasn't kidding that would have wasted time. I wasn't sure of the situation at all. If my actions cause you any amount of trouble, I'm sorry. What would you have done?

And her:

u should have tried contacting us...she has threatened overdose several times before and was walking around fine...and now this stunt will probably follow her around bc the whole family knows

And me:

I realized that and I had tried getting in touch through your cousin and (what I thought was) your home phone. I couldn't look for your Facebook until I got home. I didn't want to take any chances. I was hoping someone would have seen when I texted or called and responded back to me before I took the only other action I had known to do.

The question is, what should be done now?
<bot>: A 17 year old girl said she would overdose, ambulance called, considering protective services, I have no clue what to do.