restore background room

Hello to all.  After this last update we got the new worlds.  I hate them.  I would like to get the one I had before the patch back.  I can't seem to find it to apply it.  So I have to ask is it still there?  If not, How to I find a personal world without other people?  Or am I being forced to only have these worlds that are open to everyone.  I understand making them for those of you who like them.  And you should have them.  But there should also be a way to have that same background room you had before if that is what you like.  Please, if you know how to restore the old background room, tell me.  I would appreciate greatly.