If I understand your question, first I would suggest reading as much as possible. Not erotic stories, actual discussions from all sides of the bdsm world. Try this site, especially the parts for beginners, and other sites also. Read the wikipedia articles on bdsm and follow the links in them. Read about different implements. Read about power exchanges. Post specific questions.

After you get a sense of what's going on, try to meet real life people. Go to munches. Go to play parties. This isn't in order to meet a partner or to play around, as much as to see people in action and get a sense of what they do. Before you actually try Domming people, I'd suggest topping first, as a one-off, sensation-based experience. By that time you'll have a pretty good sense of what kind of Domme experience you are looking for.