First of all thanks for the help.
I'm starting to get more consistent at getting to level 20 and deeper into Amon Rûdh. I'm just not used to the way melee combat works in this game. It seems like that part of the game is a lot more unforgiving than in vanilla and ranged is always the best option in the beginning.
I'm sure I'll figure out a proper gameplan eventually though. Found out today that you can use Teleport Level in the wilderness which reduced the number of my restarts by a lot, just thought it wouldn't work because I didn't know about the level below it.
That's what I get for detecting traps too frequently.