If you're asking on websites, you still have a way to go. Kill Green Dragons.
Addendum by another player: If your a new player, consider harvesting raw materials, like cowhides and sheepskins, chicken bodies and other beginner items. As your skills progress, there will be better items to harvest. Each category of skill has its own best items. For instance wood cutters may make a few bucks on higher level trees, while cooks can sell pizzas and fishermen can sell sharks and lobsters. Crafters make a few bucks on glass making and many other items. Eventually, the best money will be made after your skills have topped the 50% mark, in my experience. Ask yourself how rich is rich and what kind of grinding are you willing to do to get there.
Get a job, work hard! Look for a better job that pays more, work hardER, and save up!! <- how to get rich