Funyans, I perfectly understand your opinion and respect it. Unfortunately, such is life, and personally I never understood how they select people. However, you can always give it another try, on another open day. Believe me; I got friends who made it on the 3rd attempt, they have been taken and they are flying. Why they got in on the 3rd attempt, and why they didn’t make it on the 1st one? And they didn’t change in between, they were the same person! You can also try EK/EY (maybe you already did), and they might be better than QR.
Last but not least, I wish you all the best in your future cabin crew career, hoping that you’ll end up flying high in the sky with one of these airlines, and all these stories will be just a far bad souvenir!