How do you legally change your name in AZ?

Hey everyone. I need to change my name from Tyler to Ty. I am a minor. I looked it up on the internet and the only way i found was to pay $60.00. Is there any cheaper way?How do you legally change your name in AZ?You can get everything you need to legally change a minor's last name for $19.95 at - http://www.legalformsbank.biz/namechange鈥?/a> - and you can learn more about the legal procedure there.
How do you legally change your name in AZ?
how old are you? find a job and work from there to get you cash to change your name