First of all, welcome to puberty. This is a different world. Resistance to anything I say is now the mode. My daughter, 12, still has high standards for herself and I believe she wants to please us - even thought she does not show this outwardly.
What works? This sounds like a cop-out, but she now has a cell phone. The good news about this is that we can take it away until she completes whatever we need her to complete. Yes, this sounds ridiculous, but this is the "worst thing ever" that can happen to her. As a giftie, she completes it very quickly so she can win back her cell phone.
