B/c beginner drivers with WRX's usually fuk the syncro's up pretty badly. You bought this car used, correct? Just needs a trany build. You can skip third if your car has enough torque. If it doesnt, just rev 2nd out a little longer than put it in 4th. I skip gears in my truck and i skip gears in the viper. Nothing wrong with it, if you have the tq to do it.

-Ant.