Perhaps consider going back to the ER? Maybe they have a bed available now.

I've been to the ER before of one hospital that had no beds available in their psych unit. They found another hospital that did have a bed and an ambulance transferred me there. The hospital's psych ward I went to was actually very good.

Are you alone or can you have someone you can be with right now to be safe?

You need to do whatever it takes to stay safe. You'll get through this but you need additional support right now.