My question involves juvenile law in the State of: Florida

Just wondering if there are in options for our current situation. We have a 17 year old daughter that we adopted when she was 6. She has a multitude of behavioral issues and is currently in an psychiatric inpatient residential facility. With her discharge being around March or April. She has a history of self harm, threatens to kill herself anytime she does not get her way, and this last time before admission threatened to harm/kill us (her family) with knives. She is scary and we were already sleeping with our doors locked at night to protect ourselves from her. She sneaks out, has multiple sexual partners, steals, etc. etc. etc. Just wondering if there are any options for placement for her after she is discharged. We are truly nervous to have her back in our home. I understand kicking her out is not an option because she is not 18 until October but we also have to keep our family safe.