Skyflier:
with thoughts such as this:
-- "The challenge is yours, I expect you to fail, miserably, after the last time." --
then I think you will find that QANTAS will fail miserably - because you expect it. Bad vibes attract bad vibes (that is not meant to sound as "whoa man, feel the peace" as it does!). The fact is (whether you like it or not) that you don't have any choice but to fly QANTAS on most routes. So, if you find travelling QANTAS as horrible as it seems you do, the best thing to do would be just grin and bear it, or choose another method of transport.
While you may think that good service is the exception in QANTAS, it shouldn't stop you from thinking of all of the 'good apples' (such as tyra, by the sounds of her last post) - and there are good apples out there!
If you look for the bad in any situation - you will find it!
Good luck with your travels!