Oh, there is plenty that isn't about sex. Domination doesn't have to have any sex; Domination is about control. Start small. Maybe set one rule. See if it's followed; if it is, then set another. If it isn't, punish until it's followed. Take your time; Dominating a person's life is like psychologically binding them; you start with one knot, then slowly build up until they can no longer wiggle their little toe.
You can start by controling wardrobe, diet, budget, what leisure activities are allowed, when they are allowed, certain phrases a person may say/ not say, places they may go/not go/ have to go, things they must do each day (such as count how many times they think of you for example). Think of all the little things a person does all day long, without even thinking about it, pick one, and control it. Or even just monitor it; it can make some people feel very submissive just to tell you at the end of the day how many times they peed, for example.
One example I use with my little one is that he may not chose flavors for himself. Doesn't matter what it is; doughnuts, ice cream, muffins, if he is presented with choices of flavors then he has to text me and I get to choose what he eats. I actually had to modify this once because he couldn't reach me when they were serving bagels for lunch at his job, and so he didn't eat any and wound up going something like eight hours without food. So now he knows if he can't reach me he can have plain, or vanilla, or whatever is the most boring choice presented to him.
The reason that sex seems to always come into it in my opinion is because that is the most fun part of a person to control![]()