New Character

Character Name: John Kish
Age: 14
Gender: Male
Description (hair color, eye color, height, ect. Be discriptive): Black hair, Blue eyes, 5'4, skinny, Tan
God parent: Posiedon
Mortal parent: Alyssa Kish
Powers (must have limits): Has control over water can control it 5 times a day, each time can only control for maximum of 15 minutes.
Flaws (At least three): Pride, Anger, Fear
Pets: None
Weapon (Must be Celestial Bronze or Stygian Iron for Hades and Thanatos): A celestial bronze longsword that becomes a green bracelet when not being used.
Talents or skills: Combat
Roleplay example (at least 4 sentences): I trudged thru the forest bored to death, looking for something to do. Why is there nothing to do? I thought angrily. I kicked up some dirt and saw a little green thing. I picked it up and realised it was a bracelet. A green one. I held it up and flicked it. I don't know but it felt right. As I flicked it it became a sword. A bronze sword. I dropped it in surprise, and watched as it shrank back and became a bracelet. I picked it up, amazed and put it on my wrist.
Biography(at least 4 sentences): I was 13 when things started attacking me. At first it was just things like weird things following me around, but soon things actually started attacking. I used the weird green bracelet thing. I named it Telos, Greek for End. But anyway, I spent a year like that until my mom decided it was enough and brought me to some odd 'camp' called "Camp Half-blood."
Anything else: Nope!

Not to be rude but can't a child of poseidon use their powers anytime?... if not just tell me, but I thought they could.

Alright, Edited.