Yep - I think the majority of us on this board will agree that ENT's are a waste of time when it comes to this inner ear stuff. They are good at detecting an ear infection and sinus related stuff. But mostly that is not our problems on this board.
You need to find a Neuro-Otologist who specializes in what you are experiencing. I am so sorry you were let down. Those ENT's have let most of us in here down with their anxiety/depression theories. My motto is, "I am not dizzy because I am anxious, I am anxious because I am dizzy!"
Find the right doc who understands and can treat you properly.