Me as a Dom or Master?

This may sound strange to anyone who's seen all the previous posts on my blog, but I am starting to think that maybe I want to be a Dom or Master and have/own a slave or sub.

Okay, so for the past year or so, I always thought of myself as a potential slave (or, at least, a submissive). A slave with a definite dom/sadist streak, but slave nonetheless. My ideal was to find the master who would take me under his protective cover, control me, make me feel safe, look after me, etc. I dreamed of the perfect M/s relationship--and had a tendency to get upset when a particular one (in which I got rather involved) did not prove to be what I hoped it'd be. It was like I wanted to be the slave in a Master/slave relationship, but I wanted it to be my way.

Now, for some reason, I tend to find myself fantasizing about having a slave or a sub, with me as the Dom or Master. I want to be the one telling my boy to strip and stand in front of me for inspection, looking down as he kneels on the floor in front of me, tying him to the bed and using him for my pleasure, having him do various tasks for me, taking him places with me as my (covert) slave, etc. Not that submission does not still appeal to me, but I am finding that I'm liking the idea of being in control and calling the shots, making the rules, or what have you. I'm already thinking of a guy, in particular, I'd be interested in having be my slave.

I guess there were always signs that I might soon feel this way. After all, even when I am submitting or fantasizing about it, I'm more interested in my own experience and my own pleasure than that of my Master or Dom. "To hell with your wants, Sir...Now, get back to flogging me!" It was like I wanted a Master, but I wanted him to master me the way *I* wanted to be mastered...period. I wanted the relationship to be the relationship that *I* wanted. And, when he did not comply, I got really upset with him for it.

In life, I've always been rather submissive and passive in practice, while fantasizing about being active and powerful. For example, imagining myself as a skilled martial artist or knife-thrower, a powerful mage or sorcerer, or an expert in weaponry -- and saving my dream boyfriend from the bad guy. I wanted (and want) to be active, strong, powerful, "bad ass," etc. Could it be that my desire for submission was the comfort of the familiar?

Of course, I am naturally confused by this. I am wondering the following things:
-Why this change? What could explain it?
-Do I really want to be a Master or Dom, or is this mostly just a fantasy?
-Is it possible that I just need the right Master, and this is merely a way for me to compensate by being the Master I had wanted for myself?
-Should I even seek to pursue this role with someone? Do I dare attempt to be a Dom or Master? Who am I to take this role on for myself?
-Could I...would I...be another guy's Dom or Master?

All these questions and more are some that are on my mind at present. Any input/advice is welcomed and appreciated! :-)