You do not say whether you mean Rugby Union or Rugby League, but:
the Geelong Rugby Union Club
Flinders Peak Hendy St, Corio VIC 3214, Australia
+61 429 169 025
..... specifically lists U12 and u16 sides, at http://funadvice.com/r/bgdfcgltpqp
I imagine that if they do not provide competitive games for 14 year olds, that they would be actively training youngsters your age for competitive play when they are physically mature enough to compete without excessive risk of injury.
. An Email contact address is given at http://funadvice.com/r/bgdfcgltpqp?type=contact if you want to enquire about teams, training and calendar of events.
. Or the Geelong Rugby League Football Club Frier's Reserve, West Fyans St, Newtown
whose website refers to its "Junior Sections"
The location should be visible on the map at http://funadvice.com/r/14quar8j8g0 if you zoom in and look for West Fryan's Street in Newtown.
A contact name and Email Address is given at http://funadvice.com/r/14quar8jbdj
Best wishes - Majikthise. .
Did u try and google it