Dont panic about overdoing the washes a little bit as drybrushing will take that down if you need to.
The secret to drybrushing is VERY dry layers.
Make sure that you have VERY little paint left on the brush, use an old bit of cardboard or similar to make sure almost all the paint is off of the brush.
A little bit at a time and build it up, dont try doing it in one go.
Patience, young Padawan!
