This isn't your children games.
That said, lets start with the basic. If ya haven't already done so, one can change their view to mouse view and change the control to fit to that of a WASD control. Oh, and don't change ya attack key or "Swing Weapon" key, which lead to the next point. To properly use a melee weapon, hold down the "Swing Weapon" button and move ya mouse around.
Skill wise, the Daedric, Dragonish, Orcish, etc are Language skills. Basically, the higher the number, the less chance the monster will go hostile if ya did not draw ya weapon. Mainly for roleplaying purposes.
In a way, it is that hard, in the beginning, but once one get use to the game, it get easier and easier as it goes on.
Oh, and that imp (and any magical creatures) can only be harm with Silver, Ebony and any material higher then Ebony. One can get a silver staff or Ebony dagger in the questionnaire in the character creation. Or ya can just run.