^ ^ I Wish , I'm also from Australia, The beaches are lovely, but even they can't cure a depressed mood. you must watch too much Australian T.V
I know this is an old thread but i just wanted to say the best thing for burnout is take a break, I don't know if you are paid leave in your job but if you have been in it for that long you should have a long service leave come up some time.

Maybe you could look into getting a psychiatrist or psychotherapist. They are trained higher to deal with this type of thing.