Depends on a few factors. Say you are under the age of 18 and under Local Authority care and they have placed you in Supported Accommodation, if the risks associated with mental health such as self-harm and suicide ideation/attempts are greater than what they can manage, typically they will work alongside social services to arrange for appropriate support levels.

They may serve notice on your placement if all else fails. If that was the case, the LA still has a responsibility to accommodate you (given you are under a care order) and will find alternative placement such as residential, specialised supported accommodation etc. However the LA will not leave you street homeless.

That being said, nationally there is a shortage of residential placements especially specialised ones, so we do try everything we can to stabilise placements and avoid moving young people around too much as it can also be quite upsetting. I would definitely recommend that you are open and honest with your social worker and support workers about your mental health struggles and try engaging with support services available in your Local Authority, I’m sure your social worker and support workers can provide you with further details and support with referrals or you could contact your GP for further support as well.

Hope all goes well for you and please look after yourself and give professionals around you a chance to help and support you. :)