I can't add much that the newbie guide doesn't go over already. Levelling and experience gain is going to slow down immensely right away, but that just means it's a great time to start grouping in the Commonlands.
Crafting some tattered/patchwork gear will help until you can purchase a set of banded mail from a smith in EC tunnel (about 100p for a set).
Bone chips/high quality pelts/silks do sell, but sometimes it can take a while for buyers to come around.
Since you're in Neriak area, try the moss snakes quest. It will help get you over some slow points in levelling.
https://wiki.project1999.com/Moss_Snakes