Some more subtle beginner advice that helped me clear those first few levels more consistently: at least in the latest version, item distributions are PREDICTABLE. Before you drink a potion or read a scroll, have a good idea of what you have ID'd and what you don't.
Example #1: there are three primary scroll types that ask for an item. These are: Identify (wasted if you don't have any un-ID'd stuff), Enchant Armor (also uncurses armor, so if you've read an ID already and get asked for an item, tend toward armor), and Recharging (less likely to appear starting out as the other two, mostly because wands don't become common until midgame). Memorize these three.
Example #2: distribution of potions is uneven. If you haven't ID'd a Curing potion on D:2, and you have one Orange potion and three Fizzy Blue potions, the Fizzy Blue potions are almost definitely Curing. Remembering this can save you from an unfortunate speedy Adder closing in with its poison fangs.
Example #3: As you ID progressively more potions, the likelihood of the next one being Mutation approaches one. If you drink a Mutation potion, the RNG will give you ill-fitting armor
without fail, and the only Cure Mutation potion in the entire game will be on Zot:5. Drink-IDing is dangerous for exactly this reason.
Thanks! You are right, overconfidence and greed are my two worst enemies. But I found out some things by dying so much, like that you cant kill hydras with troll claws and that 0 int isnt that good for living - my most successful MiBe had only 4 int , he couldnt read a scroll to save his life.
Yeah, Hydras are the only awful part of Lair (other than occasional Death Yak hordes on the bottom). If you see one as MiBe without Flaming, summon Happy Trog Friends and run for the stairs while it's distracted.