It can be difficult to make money in a group. There's always someone who doesn't have autosplit on or someone who loots all of the valuable stuff. That kind of behavior can rob you of a lot of money over time, which is why every group needs a loot nazi. You don't have to be a jerk about it, but making sure everyone has autosplit on and valuable items are rolled for or looted alphabetically is pretty important.
I'm not sure how crowded the ogre/troll starting area is on Green, but farming anything that drops coin and armor/weapons is a good way to make money at lower levels. For you, that would mean froglock tads, froglocks, skeletons, kobolds, lizard men, and mushroom men. Like the poster above me said, keep the lizard meat and tails for quest turn ins. Don't worry too much about XP. Just kill any of these mobs that you come across and the money will add up over time.
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