Being a good being fencer doesn't require being a certain "type." The goal is to play to your own strengths, and minimize the effects of things you aren't so good at. One way to improve is to watch other fencers. There are great videos on Youtube posted by Cyrus of Chaos. He goes all over the world and records top-level tournaments. He also covers the NCAA college fencing. You should watch the videos to see what other fencers are doing, and maybe pick up some moves you can use. The videos can be found at: http://www.youtube.com/user/CyrusofChaos.