So it was, hrm. Kick peewee awake and unlock it, ha. Or just start a new one, either/neither/or.
As for 35 defense, weeellll... that's definitely pretty comfortable for non-hard mode, haha. You'd still probably want ironskin (potions in general are great, farm farm farm) if you're soloing the wall (iirc it's either 30 or 40, maybe 45 to take 1 damage from one of its more dangerous attacks), but it takes, what, 50-60 (more?) to be able to coast around hard mode without much trouble. Stuff hits hard in hard mode. Top tier armor and full warding accessories and you still get pretty tanky, though. Still, if you want to kick it up another... half dozen? Flat ten? Something like that. Notches, brew up some obsidian skin potions and maybe some gills potions and go get a few stacks of hellstone (Think you need somewhere between 2-300 ore to get a full molten suit, which is a stack and some change). Underworld's pretty safe if you're under lava, heh.
Critter I've got running around in a mod game (dark souls one) currently idles at 79... and still gets his face punched in by any hard mode boss, some non-hard bosses (freaking jungle wyvern ><), and frankly half the hard mode mobs if they get close enough to get a hit in. And stuff like that bloody necromancer elemental...
... I'd never seen 10-15 chaos elementals on screen at the same time. It... it's pretty brutal. And colorful. And laggy. Which describes the mod in general, really, for all that it's pretty well done, imo.