Who am I?

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Across
  1. 4. A city in Australia where I lived
  2. 6. I do this for 20 minutes every morning
  3. 10. My Favourite Maths topic
  4. 11. My mothers name features in a children's nursery rhyme
  5. 13. One of my hobbies that you do in a kitchen
Down
  1. 1. Princess Mary lives here now, the same place I was born
  2. 2. Two fish swimming in opposite directions (Astrology)
  3. 3. My age
  4. 5. I share an office with this person
  5. 7. My dog shared the same name of a popular wizard
  6. 8. I drive one of these
  7. 9. Over the holidays you will find me here
  8. 12. I'm not very flexible but I still enjoy this