so i made it down to hell, started building some stuff to prepare for wall of flesh in the future, i dont have any materials to break anything down there yet. i killed a voodoo demon and it spawned the wall of flesh, somehow i got lucky and killed it. now im in hardcore mode and i cant break any blocks because my highest pickaxe is gold and i have the pwnhammer from when it dropped. any suggestions on how i can progress to get myself better mining and harvesting tools? is there a way i can beat the brain of cthulhu or is that gone now because im in hardcore mode?