Your money accumulates between games. So if you get a bunch of gold in this game and die you will start with it the next game. That may be the advantage you need.

Fighter class is actually pretty hard. I went with Thief class first. The 30% attack boost they get on first strikes really helped. Also, if you find your way is blocked by a bunch of higher level enemies, there is a spell that will teleport them to a random tile in the dungeon, opening the way for you. But you have to find the spell first. =/