1) Amongst the menus (hit Esc I think) is a panel where you can control the sound.
2) The walking should mean no problem. It should be continuous when not in turn based mode. Try the settings until that happens. Otherwise aim with the mouse when turn-based (in continuous mode the aim is automatic mostly).
A tactic to mention that if you have BOW, you can run backward while shooting forward. Real time or turn based - doesn't matter. Later there'll be areas where one or the other is more efficient.
3) To not die watch your HP, and retreat to the local temple.
Beware, as Temple of Baa although much-much cheaper, it lowers your reputation!
4) You are allowed to hire 2(!) hirelings. You should definitely get a Scholar, no exception (found an artifact in a dungeon you can't leave? no problem, s/he identifies it).
Banker is another good thing, especially at the start, as instead of taking money, it GIVES money (incrises looted gold).
Hirelings change every time you reload the game (just a hint).
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Otherwise just walk around cautiously to not get overwhelmed. It can easily happen, as the AI walks around real time just like you.
First thing you should do is to clear the goblins nearby, then try to enter their fortress. There the corridors are narrow, and you'll soon find a room full of chests to loot for basic equipment.
Uhm, did you pick Bow to all your characters at the start who could choose that?
The local Gym can teach it too if I'm correct.
