How can I style my hair differently?

by Claire
(Perth)

I have brown short hair that sits just above my shoulders with some layers. I always style my hair in a pony tail with all the leftover layers coming out at the sides and it looks like an inverted bob, but i want to be able to style it different.

When ever i straighten my hair and leave it down it messes up the time im at school. And when i try to curl my hair it looks like a frizz bomb! HELP PLEASE!!!??? Theres a pic of what it looks like straight , soz it not very clear, only one i can get,xOxOx