Dont worry and dont let that get you down. Im not very tall and I made it to the final interviews. I have seen several FA's who work for Emirates who look about 160cm and with the heels on. Im sure you will be fine
Heres a tip. You know those plastic cushion covers ladies wear on the soles under their feet for comfort when wearing heels? Place one under each sole and put your stockings on
It will give you a little more height
And good luck. Dont give up