All good advice. I'll add...
This is one of those times that finding for an experienced sub might be a good idea.
She would be able to advise you before and after without topping you during a scene. She would have probably met the best and worst among doms and posers.
Watching her, you would come to know how an experienced sub acts... and then, you could begin to mold her into what you want. You will see her strive to please you... and when she can't, she will make it clear that she should be punished... and will suggest punishments she doesn't like...
As you come to know yourself, you will realize she is either exactly what you want... or you will go your separate ways and you will be ready to train one to your own specifications.
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Some may suggest the best way to learn is to sub yourself to someone... and if you have that inclination... fine, but it's not necessary imo. Not if you have a good head on your shoulders and a good sub on your lap.![]()