aahahahaa
1. Turbo can only run Factory Boost Lvl which is 0.4bar, even with a ebc it can not be turn down lower than that (ps i have try)
2. P's + turbo = bad news,
Its got nothing to do with u being young or anything like that trust me, i own an r33 gts-t and im only 17, but i can tell u all the money i make goes into the car or goes towards saving for something. Things like clutch, shocks, tyres can go at any time and cost alot to replace.
Also fuel and insurance isnt cheap, yeah go 3rd party, i did but when u hit someone see how long it takes u to just get enough money to fix your car or even pay the excess (mine is around $1000)