Wait, you can change the difficulty virtually on the fly, at the character title screen select your quest and then also the difficulty (I'd suggest Normal(Medium)).
No need to start over.
Edited by shamblemonkee at 11:52:48 11-09-2013
#9835183, By shamblemonkee Diablo 3
shamblemonkee 16,518 posts
Seen 42 seconds ago
Registered 12 years ago