A couple of things that have been said, but bear repeating.

Don't be surprised that your Dom needs are not a mirror image of your sub needs. It's that way for most of us.

There is nothing wrong with being a gentle caring Domme with an urge to look after your boy. I've been called a "service Dom" by people who didn't mean it as a compliment, but I took it as one. Furthermore, that desire to nurture and protect your sub needn't conflict with keeping him under strict control, or with beating the tar out of him every night, if that's how your tastes run.

Good luck, and let us know how it goes!