If you were a control freak you wouldn't be asking the question. You'd 'know' you were a Dom!
You'd also find a big lack of women wanting to play with you.
To me, a true Dom thinks firstly about his sub, then about his own needs. You seem to thinking of her, so you're on the right track.
Myself I 'thought I was a Dom' last year & found out I wasn't. Better to think you'd like to be someday, & start learning. Better still to enjoy what you do & care for your girl, & not worry too much about it. It's too easy to take all this too seriously, it's just a bit of fun.

Tojo