I agree with what everyone said bout reading as much as you can. Ask as many questions as you can, dont be afraid to ask the questions because you probably arent the only one who would like to know the answer! Becareful with the information you do receive, try to realize theres no "real" or "twue" way to practice bdsm. Try to be safe, sane, and consensual as much as possible. Realize that you can say no, if you feel uncomfortable and that you can exercise that right as well!.

Try to have fun with it, you may not be the submissive that want 24/7 but that doesnt make you any less of a submissive. Try to be try to yourself and continue to have fun!
Also there are some great books out there you can read, if your able. "Jay Wiseman SM101 , and The Loving Dominant - John Warren". Both of those books can be picked ordered through amazon, so you dont have to try to order through a bdsm site.

Remember to have fun and enjoy yourself!!