my sincere answer to this is i think the easiest way to feel more dragon-y and powerful is to just do it. if you're looking for an outlet for dominant urges, being a dragon is a really fun way to go about it. fake it til you make it, feed off of the compliments and admiration you get. the attitude starts to feel more natural the more you play into that confident, self-assured role, so you may as well just create the mould first and then fit yourself into it. my own experience with this was making a character that felt somewhat aspirational to me, and then realising i could inhabit that any way i wanted. and truthfully, there's no rule saying you can't be submissive either, it doesn't have to be one or the other. switches exist and it's fun to do both! in fact i'd make the argument that experiencing what subs do is a great way to improve your dom skills, as you can come at it from a place of empathy and understanding of your sub's needs when you've experienced them yourself.

and my horny answer to this is "resign yourself to your fate as prey because you've clearly found your calling. worship at my heel and abolish any notion of a higher purpose."

hope this helps!