If you're playing within your capability, what's the point? If you're not pushing your own technique to its own limits with the risk that it might just crumble at any moment, then you're not really doing your job.
If you are worthy of its affection, a cat will be your friend but never your slave.
I have got one of those faces that change every day: you can dress me up, make me look vampy and then make me look 12 years old. But don't all women do this thing? We all take on these roles.