My wife and I have discussed before that she enjoys me taking control but last week I finally went all the way and asked her if she thought she would enjoy a full D/S relationship, at least in the bedroom (we're still working out stuff outside of sexual interactions). Long story short, we both cant stop thinking about each other now and she's very quickly warming up to every idea I've given so far, save one which I will discuss later. So, as a new dom who wants to make sure we both enjoy it as much as possible, I want to clarify some things. Also, apart from my questions, general advice is always appreciated.

1. How slow should I go? By this I mean at what speed should I introduce new concepts, rules, activities, etc? I dont want to overload her and make her feel like I'm asking too much, because obviously we discuss these things outside of scenes and she has every right to decline.

2. How do I judge when to flip the dom switch? She has agreed that she would enjoy the occasional random dom/sub interaction even if it doesn't lead to anything sexual, but I dont want to do it so often that it gets tiring or she isn't enjoying it. I'm not opposed to the idea of TPE, but I'm not sure she'd ever be up for that. That's a question for probably a few years from now.

3. Where is the line between training the sub to enjoy something, and actually just making them do something they dont want to do. I guess it would be when theyve tried and haven't warmed up to the idea at all but I'm not sure. This question came up because she isn't sure she likes the idea of me controlling her orgasms.

4. I've never been an outspoken person. I wonder if that is part of the reason I enjoy this so much, but regardless, it can get scary suggesting new things to her because frankly it embarrasses me a bit. It's not like she would make fun of me but I'm scared that she would decline, and then she'd feel like she'd disappointed me. How can I avoid making her feel that way.

I appreciate all the help in advance. My biggest concern is overdoing it and making her not like this anymore.