Hello Dairasin,

The first thing i would recommend would to be follow the tutorial it has a lot of useful information. When it comes to finding "rock" to make a firepit that would be any kind of rock, Granite,limestone,basalt. A mallet is the same as a hammer.

Second thing would be to avoid the revenant "Xsyon's version of a zombie" If they kill you they will loot some of your equipment.

then there is eating and drinking never forget to keep up with that as it will kill you.

Best of luck on your arrival to the world of Xsyon!