Just jumping in here for something to do.
When I think about the mechanical difference between skiing flatter slopes and steeper slopes the primary difference is we have a greater distance to move our cm to change edges. So, with this in mind, to help you get down a steep intimidating slope that has you hugging the hill, try to begin with a really really wide stance. This minimizes the distance your cm has to travel down the slope before you can engage the new inside edge and feel the security of the new direction change. Ski a run or two like this and your confidence in the steeps will soar!
The difference in my mind, between a good skier and a really good skier in the steeps is: a good skier will hop to change edges a really skilled skier will leave his/her skis on the snow and guide the top part of the turn with minimal pivoting.