Me (25M), and my gf (25F), of 6 years relationship, 5 of them living together, and we are opening and exploring new fetishes, and now our curiosity went for BDSM.

We made a couple of online tests to find out faster which role kinda suits better for each of us. I'm Switcher between Submissive and Dominant apparently (most of the tests throw that I'm more Sub than Dom) and she kinda just likes being Sub. (And also, we are also exploring being non-monogamous)

Now, that's the problem we usually find:

Because she knows me too much, she often can't take serious me being Dom, most of the time, she finds funny "me performing as a Dominant". And to be honest, she even resists simple orders like "on your knees", "masturbate in front of me" (she doesn't like being degraded or degradate herself, but when exited, sometimes she does it for herself to make me cum faster)

She also says she likes this game of "disobeying", for being dominated, but in reality, punishment, brute force, soft forcing doesn't work on her, she doesn't follow orders also, and I'm running out of ideas for that little game, and when I ask her about it she just says "I don't know, just make your own research as you always do" but I'm running out of ideas.

As for restraining her, she doesn't like belts or roped, she says they are uncomfortable, the only thing for the moment accepts are eyes covered.

She says she likes "to be tortured", but not with physical pain (totally out of the table), but more like "I can't get what I want whenever I want it, so play with it" (intermittent pleasure denial?) But it never works, she just get frustrated really quickly, and most of the times just loses the built arousal and gets mad (I mean, even when I displace a little bit the satisfier long enough, she gets frustrated and ruins the moment for her

Maybe she finds BDSM arousing in the letter for doesn't have the patience for what it takes ? Maybe I don't have the knowledge of how to perform the Dom role, maybe both but I'm here looking for advices, tips and new ideas to try out