Cant Teach an Old Dog New Tricks

My small dog loves to play ball, she will bring the ball to us to throw it, she will retrive it and bring it back to us..If she wants to play and we don't she has learned to throw the ball by herself and run catch it..She can also walk around for a very long time on her hind legs walking straight like a person...Our dog can also open her cage where she sleeps and close it all by herself.At night when she wants to go to bed she will go and open her cage, close it and lay down on her mattress and go to sleep...She is also very smart, when we take her someplace with us, we always take her carrier, so if she gets tired she can lay down..well she loves toys , she has a whole toy box, and if we go someplace like my daughters that also has a dog, she steals things that she likes and hides them in her bed..We always have to look in her carrier to see if she has lifted something haha.She is a small dog, and she is one year old today...