breast augmentation age

Katelin • S.p 💋
Hey girls, just wondering the ages you all were if you've had your boobs done when you actually had the surgery. 
I'm 17 and hoping to have mine done by the time I'm 21. Fingers crossed. 
Let me know in the comments.
Also roughly how much you spent and what currency as I'm from Australia and I will probably need to convert the currency