Probably not there was like 7 or some others that got rejected at the same time yours did, I believe everyone thought there was a needed change in the staff requirements since they were semi low, BUT you have to remember not all staff apps get accepted, if you look, barely any do. The new changes I believe balance out the requirements with Staff vs. Supporter. Also you have to remember, you are 12 years old, your still maturing, have yet to hit puberty, I'm not gonna be some guy saying "STFU squeaker!", but you just have understand there is more mature people applying for staff that may get rejected aswell.
I hope I said that right
Sorry if I offended you or anyone else.