If you just hit your Ps, you don't know how to drive yet. You NEED more experience first, have your first crash first, at least (everyone does).
Learn how to "drive aggressively" in a paddock (don't need power at all) or on a track, in ideal conditions, with the least amount of risk, to you and your car.
Edit: an AE86 with a 4age in will be ok :y: legal engine swap too.