Is CNC Just Not for Me as an Aspiring Daddy-Dom?

So I'm a aspiring Daddy Dom in my mid-thirties and I'm dating a Little/Submissive in her late 20's. We initially connected over ageplay and DD/lg and THAT aspect of our relationship is wonderful and super-fulfilling. I love to coddle and caretake and be that soft, safe space for her to let go of her adult self. It's the kind of play that really speaks to me, fills my heart and I feel practiced, confident and have lots of experience in.

BUT, my partner has expressed to me that while the ageplay is amazing and makes her feel safe, protected and loved, it's really not where her sexuality lies. That in fact power dynamics and CNC are the major kinks that she leans on. To the point she would prefer to have some element of light CNC in essentially all of our sexual play.

These things are new for me. I absolutely have interest in them, but not experience or confidence in performing them. There have been a few instances where I've been able to access a very dominant headspace and really enjoy the commanding, domineering play but when I meet resistance, everything grinds to a halt and my confidence shatters.

This makes CNC even harder to play with. My every learned instinct and behavior tells me that someone who is presenting as resistant and reluctant is not enthusiastically consenting. Only with the most explicit consent can I approach comfortability with this kind of thing and even then it's hard.

This is all complicated by being almost entirely long-distance. Playing over FaceTime without any physical techniques to lean on makes it feel almost impossible. I can't get in her face, threaten to spank her or really DO anything except talk. There's also no physical feedback so it's not as though I can take solace in things like "well she's saying 'no', but she's leaning back into me."

This leads to encounters where I'm trying to be a Dom and give firm instructions that are met with basically "mkay that's nice, how are you going to make me?" Like it's FaceTime... what am I supposed to do? Raise my voice? Get angry at disobedience? Threaten... what exactly?

I'm just finding myself really questioning if I'm just too "soft" for this kind of play or if it's just not something I'm going to be able to do without a lot of hand-holding and confidence building. Any other kinksters gone down the transitional road from soft Daddy to a more Dominant role and struggled with it?