Talk to everyone and gather quests....complete the quests and you will gain items, exp and cash. Make sure you work on your harvesting so you can track down your wholesaler and complete his quests as well (12silver per quest).
The Graveyard has many nodes to harvest. Make sure you pull up the quests offered in the Graveyard (available on this site) so you can quest, exp and harvest at the same time.
You can also sell the stuff you harvest to other players whilst you sleep using the market board you can buy from some vendors. I often do this and make a few silver each night for my troubles.