I can only farm map 1, and even then I still lose like half the time, depending on the shuffler :-(
I just want to have the ability to go back down to one of the previous difficulty levels, so I can farm something that I can actually reliably win, until I get strong enough to proceed. It gets really discouraging, and kind of sours the game, when my only option is to waste my limited attempts by fruitlessly throwing myself at levels that kick my ass. There's only so many times that I can get my ass kicked before it's not really very fun anymore.