I used these commands to create my own controls.
cd RetroPie/emulators/RetroArch/installdir/bin
./retroarch-joyconfig >> ~/RetroPie/configs/all/retroarch.cfg
I felt as if just loading yours would be cheating, since I am trying to teach myself the process. It seems everything is good, although I heard I should go into the configure file and delete certain key maps. Is this required for an Xbox 360 controller?