This is so grindy and borderline impossible. When you get to the fiery door with FIVE mages behind it, you can't win as the burning man, but you are half dead before you can change back to human! I have always quit playing at this room, and this latest play through looks like it going to end there too! It's like this room is ramped to 10 for some reason, despite coping quite well leading up to it!

I tried using the console cheat "killallenemies" in a difficult room I cannot survive, but once I enter the cheat, the console stays up, and I cannot move as hitting W, puts a W in the cheat line! If I can get past that, I want to be able to disable the console, deactivating any cheat I have activated!

Can anyone help?

First of all, if you always quit playing during the fade, you could use the skip the fade mod to skip it all together.
https://www.nexusmods.com/dragonage/mods/816

On the console:
just hit enter and wait a couple of seconds for it to disappear.

Thank you. Don't understand why Bioware didn't have a command to cancel any active cheats, as I used the immune command, found I couldn't undo it, and had to go back to a previous save!

running away and fireballs, man. I barely broke a sweat during the lost in dreams quest. throw a fireball into rooms after you open the door, and also, always run away, recover, etc. My MC also has fireball, so that was my main tactic. for individual big foes, the spirit form imprisonment works wonders