Ok, maybe I'll keep trying then until I hit the first boss. Thanks for the tip. The early areas aren't all that interesting, and I wasn't all that excited to play through them a second time.
Originally Posted by The Walkin' Dude 
Before restarting on Impossible with a different class, I recommend that you at least reach the first boss (the one where you can't use your Rage abilities). The game changes drastically after this and you will be pleasantly surprised. I wanted to restart as well but am now happy that I did not.