My final update:
Did all the stuff leading up to the Sootopolis Gym, with Kyogre, Groudon, Magma, Aqua, and Rayquaza. Beat Juan on my first try, though it wasn't easy. Got the Rain Badge.
Reached Ever Grande and pushed through Victory Road. Beat all the Elite Four and then got destroyed by Wallace. After a bout of training, went back and challenged them all again, but lost this time to Drake.
Spent all Saturday and Sunday training my Pokemon up to Lv. 62-63, then went back into the League. After wiping the floor with the Elite Four, challenged Wallace in an epic historic duel, that I gracefully won!
HALL OF FAME TEAM:
--- Altaria Lv. 65
--- Metagross Lv. 64
--- Houndoom Lv. 64
Woot! I'm done!