Ok.. I'm trying to be nice here...
1) Change your signature!! It does not make you sound cool, it provides people perception that you are just another reckless hoon.
2) Dude.. I aint australian, even I cant understand what in the hell you are talking about half of the time.. see quote.. Perhaps this is the reason why people are telling you to goto uni?
As to your 5k, I would suggest you to take a driving defense course tho havent done it myself. However I didnt not start with a powerfull car (I started with a 4 cyc and drove that slowwwww... car for 4 years).
The following is what I would recommend.
1) defensive driving course
2) front pipe to match the cat back exhause (as I am assuming that is that u have atm)
3) Another nice sets of rims (can never have too many rims. )
4) Nice set of coilovers
5) EBC
These are the orders that I would recommend however not all people would agree or would accept it.. the choice is yours. There is no reason not to have fun but within limits. Dont be another idiots that give all young drivers a bad name and reputation.
PS. Seriously change your bloody signature, if you want people to take you seriously and not a stupid reckless kid