Ask for her opinions and preference often,

 

and follow through, like what to eat, what to wear, or where to go, etc..

But once you set a boundary, stick to it and don't back down, like the "No PC in bedroom."

She'll push the boundaries, that's what teens do.  Once you back down, it will invite more pushing.

 

Next time she is on YouTube again, say: you are enslaving yourself to that master of yours. Or, how much of your energy is drained every time you are helping others make money?