Answer:

1. one day i was on a beach,i swim at the beach, turn into a beautiful mermaid and i saw a castle.

2.I'm above at the sky, i was flying like a bird,and i saw a cute unicorn.

3. I live a castle,i was a princess,i have a crown,a dress/gown,and i rule the kingdom.

4. I was a wizard who study at a wizard school,i make potions and learn some spells.

5.  I was a time machine and travel to the FUTURE, i saw myself like an adult i was not a kid anymore when i travel at the future