Mate,
Here’s my point of view-
Finish school, cos then at least you have a choice in anything you do.
Then, if ya still don’t know what do, GO TRAVELLING!
Thats what i did.
You can surf places you never knew existed, shag chicks with names you can’t pronounce, drink yourself silly, earn stronger currencies than your own… AND get trade experience.
I’ve come back a half decent carpenter, it wouldn’t take long to get my cert if I wanted.
Thats my fall back plan.
But the biggest thing of all is it gives you time to find out what you want in life, what you’re good at.
Shit, I wish I was one of those 16 year olds who knew what the wanted to do and went and did it, but until the last few years I had no clue (i’m 28 now).
Now i’ve spent some time doing some hard jobs heaps of different stuff, some that earned bloody good money, some not.
And i’ve realised I don’t wanna spend all day doing a job I don’t like.
Some people love the artistic expression of shaping, the lifestyle… personally for me it would be drudgery.
But thats just cos it’s not my thing, just a hobby, for the right person it’d be awesome.
So, i’m doing a degree, and it’ll earn me shit loads of money in a couple of years.
I learn about composite engineering everyday. Carbon fibre and shit. very appropriate.
I wouldn’t be doing it if it wasn’t the only way to get where I really want.
I almost decided to be a carpenter, but I don’t really love it, just don’t mind it, which isn’t good enough.
The dream is to use the degree to do crazy surf design.
Take some time eh, the worst thing you can do is burn your bridges, keep your options open and aim for what will make ya happy.
Go overseas, shag and surf your way around the world. It’ll show you how bloody cool auzzie really is.
Just my point of view 
Better than working in jobs you don’t like in your home town, killing time til you get old.
Kit