KuchingHitam...
My only suggestion is to never quit trying. Flying is a dream for many. For me, it's a dream come true. But it hasn't exactly been a smooth sailing journey to where I am now. And that makes things all the more sweet in the end.
There are moments when you will be let down, you will fall short, or you will have your self esteem hammered to bits and you'll feel like you're hitting rock bottom.
Apply again for the cadet interview (not just the career talk). If you get rejected in the first round, try again. If that doesn't work, try other airlines too like MAS. And as a last resort, take flying lessons. I guess that's what seperates the true passionate aviators from those who are in it for the money. If flying is your thing, then keep going at it.
Watever it is, try not to let rejection from an airline affect your self-esteem. Flying is more than just airlines and jets. It's a myriad of other things as well....