The first thing you should do is familiarize yourself with the various merchants in the major cities. Try to determine what sort of thing each of them is interested in buying, then keep your eyes open as you search the holes, cracks, and crevices of Thera.

Some of them, mostly armorers and weaponsmiths will run out of money rather quickly and not be able to buy what you are offering, but there are tailors and jewelers, tanners and scribes who are less frequently sold to who can keep your low level character pretty flush with copper.

There are also places where treasure is just lying around, waiting to be found. Bandits may leave a scene of carnage, but miss a hidden compartment full of coin. There might be a forgotten chest full of gold.

Additionally, free food is available in many areas. Fruit may be on the ground, but if you look in bushes or trees or under logs you'll find other things to eat.

You may find steaks on the ground, left by groups who have been ranking. Eat them at your own risk. If a ranger made them, you'll be fine, but the steaks made by Orcs can be poisonous.

Good Luck. CF is a harsh environment, but the immersion and experience is unlike anything you'll find anywhere else. Welcome.