Help me find an old YouTube horror thing lol

So in like 2012-2013 i wanna say i stumbled across a couple of videos and it was in a gothic style. The one i remember perfectly was there was this little girl and she lived in a big house and she got whatever she wanted but she was also neglected by the parents, later on i think she had this imaginary friend that looked like a demon and they where friends. Now this is where it gets spotty but i do remember a part where the girl got a new sibling she got really jealous and her and her demon destroyed everything. That’s all i remember but i really want to see these videos again!