Recently, I tried to create a fantasy world. It... didn't work out, and part of this was because I felt like I was going from playing in the kiddy pool(fan fiction for me was like a set of training wheels to learn writing) to being thrown into the middle of the Pacific Ocean. So, I ask this. Where do you start with creating a setting? How did you learn to create a setting? Did you have to slowly work up to it from genres that didn't demand as much world creation as fantasy does?(Fantasy is... quite something with that.) Or did you not have this problem, and could swim in the Pacific Ocean without much help? More seriously though, how did you do it?