abangjohnny, here's my $0.02 worth. If you can find a way, do an aviation degree in Australia that incorporates a CPL ME/IR. This way, you save time (if not money). With that, find work as a professional pilot - instructor, bush pilot, piston charter work. By the time you reach 26 y.o. (SQ's minimum age for Singaporean citizens) you would have plenty of hours to qualify for any of the regions airlines. DO NOT BE FIXATED with flying for a Singapore carrier. Take the opportunity to live and work in a different country. SQ takes direct entry captions (DEC) so you will have the opp to work for them in the future should you wish you.
I am a CASA PPL holder currently self studying for my CPL exams. I have 200 hours total time.
This is my opinion, I am no expert.