What's your pup think of wing clip pigeons? That's the best way to fire them up.
SHe's at the age of teething and count your blessings you haven't turned her into a balls to walls crazed fool for retrieving. Somethings you can't turn the clock back on, and that is one is a booger so count your blessings! Relax she is just a sprout and enjoy her being a puppy.
If you don't believe me just go search the words of wisdom from our dearly beloved Howard N. He will tell you the same thing....