I think Gedanken's posts offer good advice.
I totally understand what you were talking about, Cameron.
Sometimes, I do get caught up wondering, "Why am I here? What
am I here for?" etc etc. However, the sooner we realise that
the answers to such questions will perhaps not be revealed in this
lifetime, the better because we can then free our energy into
making our time here meaningful.
Right now, I do have several dreams that keep me going.
I've achieved one huge dream that took years in the making -
emigrating out of Singapore. Now, I have a dream of taking a
Post-Grad Dip here, learning how to drive (starting driving lessons
in November) and then owning my first car, owning my very first
home here and moving all my barang-barang over here.
Those dreams will keep me busy enough and out of mischief for
the next few years, I reckon! 
