your right, its a bit wierd that a 15 year old has a tama. The tama with stop in time, and it will just STOP. the hearts wont go down, it wont poop, and that, but the time keeps going, so it still sleeps, but to grow, it counts the minutes UN paused, so, if you want it to grow, leave it un paused at home or in your locker. It might die if you leave it at home unpaused. so i suggest bringing it to school and keeping it in your locker. Good luck!
The Tama Queen
P.S. if you are a boy, why is your username Juli? Girlfriend?