I'm 46 now, and if I continue that pace, I'll be dead before I even reach the bottom, let alone ascend.
Also check out DCSS, amazing game, been playing for soon 40 years.
Once you learn how to kill a fast enemy (like a soldier ant) without letting it fight you in melee, you become unstoppable for the first 1/3rd of the game or so. You discover that you don’t need the best armour in the game right away, you don’t even need more than a half-decent weapon, you just need to maintain your supplies of ranged weapons (and wands).
Stepping in traps can also be avoided with the knowledge that (with 2 special exceptions) traps only generate in rooms, not corridors. Traps can be safely searched for from adjacent spaces and once discovered remain visible permanently.
I should also point out that the two enemies you mentioned that killed you have one thing in common: poisonous sting attacks. Poison has been nerfed in the latest version (5.0) and poison resistance can be acquired in game. Furthermore, some characters actually start the game with poison resistance for free!
(extremely mild spoilers:)
- A core skill for Nethack is understanding how much danger you're in at any particular moment. Your comment about soldier ants below tells me you've made good progress here. But you need to recognize when you're in danger and how long you have to deal with that problem before you'll react appropriately.
- Nethack's dungeon isn't linear, it branches. (Think of the gnomish mines here, but there are other examples deeper.) When you're getting in over your head in one branch, go back up the stairs and switch to another one.
- When you're in immediate danger, Stop. Look through your inventory, consider your options. Think especially about wands, think about ways to write Elbereth, think about scrolls. Think about ways to use diagonal movement to your advantage to get to an escape, or a more defensible position. You have all the time in the world to think. There may not be a solution, but I've died more than a few times with more than one thing in my inventory that could have saved me.
- You need to be able to identify some things without waiting for a scroll of identify to fall into your lap. Price is the easiest way to identify the scroll of identify itself. It's also straightforward to learn to identify most useful wands: with spoilers or by experimenting. Engraving with the wand will often give you more information than zapping it. A lot of your early I'm In Danger toolkit will come from wands you've identified this way.
Good luck, have fun.
(Intermediate player, a few dozen ascensions 20 years ago.)
It's been nerfed since 3.6.X as well. Now it can no longer be used for fighting, only escape, and attempting to fight while standing on it will make you "feel like a hypocrite" and deduct 5 from your alignment score.
They added the ability to apply your money to flip a coin in this version! Why does that need to exist? Because they thought of it!
This being NetHack, an answer is often not as straight forward as it could be. Most of the time the level difficulty is proportional to how deep you are into the dungeon but there are levels where your experience level factors in as well.
#tech