If u wanna learn to drift well, sticks with Sims. Then u can drift with anything.
I learn with anything other than Sims, and then transfer over to Sims for looong drifts ( The best), youll have trouble.
It helps to know the Angle threshold of the the car and the road. Meaning, once you turn into a corner, you have to know when exactly to start countersteering/accelerating. If you turn into a corner , and your angle is too sideways (Bad English), then youll spinout. Im not sure if this is what your doing, but this can also cause spinouts, which has nothing to do with to much gas.
All i can say is Practice Practice Practice. I sucked too, now i don't.