Guidance regarding chastity

So I’ve been practicing MC for a few months now. I feel like I’ve come a long way in this short time. I’ve gone from buying a device on my own and springing this on my reluctant wife to being locked 24/7 with my wife agreeing to holding the keys. I can’t complain about how she has accommodated me in this journey I’ve asked her to travel with me. My submissive nature has really started to come to the surface and I’ve been more open with what I like and want to try. I even had a great spanking in bed this morning! Despite all these lovely activities, I still want more. I feel like I could ask for the key tomorrow and she would be fine with going back to our “vanilla” sex life. Am I still trying to move too fast? What I would like this to evolve to is her really taking the next step and truly start to enjoy controlling my orgasms. She definitely is not into any day to day teasing so far. I’m not sure if she will ever be my dream “keyholder” but hoping over time she will enjoy the benefits that I will try and give her that she won’t be able to resist. My question for all you “old timers” in this lifestyle would be this. Have any of you started out in a relationship where your partner was not as enthusiastic in the beginning and then with time became to relish being your keyholder. I don’t want to screw this up.