Every Daddy describes his own DD this way. You need to start looking at your DD more objectively. What is "aggressive"? What is "smart"? I understand she is 11YOA and isn't going to be a perfect fielder. The real question is what percentage of the time does she field the ball correctly, what percentage of the time does she throw correctly, and what percentage of the time does she make correct decisions.
I agree with that...I had that problem for a little bit. It's self fulfilling to some degree, but you will be able to help her a lot more when you can look at her skill set objectively.
I would get her to a better environment though. Life is too short to have DD a mess this early in the game.