Not at all.
Do not play yourself down.
It is all about asking the right questions, either to get something out of any search engine, or to get competent people to not ignore you

For the movement in nethack, it is awesome gain to learn since it helps you to use Vim Editor.
In Vim you have separate modes for most things. So in any other than edit mode where you type with characters, you can move the curser with h =left, j = down, k = up, l = right.
Those where chosen because when you place you right hand fingers in standard position for 10 finger typing they lay on hjkl. From that finger position the index finger reaches left up to z (diagonally left up) and left down to b (diagonally left down) and right down to n (diagonally right down). The middle finger resting on j can also reach u (diagonally right up).
This method to navigate a cursor was widely used before cursor arrow keys and Numpads messed up the experience by having much longer ways for the fingers and even the hand when moving away from the char section.

Imo Nethack is the best way to learn that type of control and get it into muscle memory.

The 89 commands you can e.g. use to manipulate the various items that come across your path have shortcuts on the keyboard.
But you can execute every command by typing # followed by the command name if you do not remember the shortcut.

This excessive use of controls and shortcuts is another beauty of nethack.
Other games try to soothe your brain with beautiful animations and physics emulation. But even in complex modern games the actual amount of actions you can do with given ingame elements is rather limited.

But you already had unnethack running and asked how to get a game rolling.
It is not very fruitful to ask me via dm, since the best thing you can actually learn from nethack is problem solving skills. The cool thing is, those are the same skills you need to get into any computer thingy in depth
And it is so simple, yet a little tedious at first.
Just type everything you have a question about into the nethack wiki. You will get an explanation.

0. Select a character to start a game.
I advise to pick Valkyrie or Barbarian first as they have the highest initial hit/health points.
Male or female, chaotic, neutral or lawful by random since you will learn the impact only muuuch later until you died a lot and started all over anyway

1. Get used to the controls first by navigating through the rooms and paths that are randomly generated once a level is created.
If you hold shift when moving in any direction, you will move until you reach any obstacle. This will speed up things considerably.
The underscore key _ gives a navigate mode. In there you can much like in vim only move the curser over the screen and press . at the place where you want to travel to. Your @ will move there even around corners automagically until you encounter an obstacle.
If doors are locked, #kick them open with ctrl+d.
A stairway down is marked with >. Stand on it and press shift+> to move down a level.

The new level is randomly created when you first step into it and will never exist the same way in another game. Some levels have a fixed layout to do quests (like medusas, the mines town, the castle etc) but those only start after lvl 5.

2. Find food.
One of the challenges in early game is to not starve, so just running around looking for % symbols for food and collecting it is a valid strategy. a food ration gives nutrition for ~500 turns.
You can eat corpses of killed monsters too which is advised but also dangerous because of various side effects. Also eat those corpses within ~40 turns since they will rot and give you food poison.

3. Slay monsters.
To level up experience and get food or random death drop items or the inventory they had, you need to kill monsters.
For that just step into them, you will hit them with your #wield ed weapon.
Since you have a pet cat or dog with a nice AI it is advised to let it kill the more difficult monsters for you. It is a special challenge to keep it at your side and feed it with corpse so it will do so more reliably.

4. Item identifying.
The hardest part of nethack is that every item is randomized in its appearance at game start.
Regardless you learned that a potion of healing gives 10-20 points precious health points back by quaffing it, it will apear as pink, yellow, golden, smoky etc. potion randomly.
The danger is, the green unidentified potion you #quaff to test id it could as well be a potion of polymorph, turning you randomly into e.g a dragon or newt for 500 turns.

That should do for the first hours of dying.
If you really tried, just hook me up with detailed questions if the wiki does not help.