How to convince my parents to send me to boarding school.. it kida complicated?

Well.. I recently attended a great boarding school! But i left beacause of emotional isses. Well... noww i feel like i am readyy to go back! I was 11 when i first attended boarding, which is quite young. Now i feel like i am reallyy ready to go back and give my all in all my studies. Well.. my parents are not loving the idea. I need help. I need you guys to tell me some ideas on how to convince my parent that i am ready to attend boarding again. And by the way.. I am looking at an all girls boarding in Australia! :/ i reallyy need hellpp