Supported accommodation?

Hi 

So I need to leave my home. My family are trying to move. I’m not happy here. so the council asked for an eviction notice. Fine fair enough. I thought given the circumstances and the way my applications were going 2 months was looking okay I thought I could be housed by the time 2 months was up. They then phoned me and said we can’t get you a place at the moment you’ll need to wait another 16 months. I don’t have 16 months. we could’ve pushed it to 4 maybe but not 16. They said I could go private have I looked. Yes I can’t afford it and I’ve done private it was awful and then they won’t help me either.  She said you could make a homelessness application and we can put you in a houseshare or supported accommodation. I simply can not do a house share. So it’s looking like supported accommodation is my only option but I don’t really know what that means. I’m so stressed out right now and I’m going to go back to my youth worker but I can’t do that while im here