sub in need of advice about new relationship

22 year old female sub here, just starting out in a new relationship. I am a masochist; my last relationship was 24/7 D/s and I thoroughly enjoyed it. I have learned that BDSM is an important part of my life and a necessity in my relationships. I might not need to be in a 24/7 relationship again, I'm not sure, but I do know that I enjoy tastes of BDSM throughout my day and during sexual play.

So with this new relationship, my partner (23m) is aware of my kinks and past relationship. We've only been seeing each other a few months. Our sex has been vanilla but WONDERFUL. This is perfectly fine with me considering I want to establish basic sexual compatibility and trust before venturing into BDSM. We have a very open dialogue about sex and we've discussed many of our fantasies. He is 100% new to BDSM and has never even pulled a girl's hair before, so he's totally lost.

As a sub... I feel silly trying to tell someone how to dominate me. I just want it to happen. But... I'm afraid it won't happen. He knows what I want. We have a safeword. I hate feeling like I'm topping from the bottom and I just want to be put in my place. He's expressed interest in trying all the things I'm into, and he even said he would be interested in implementing 24/7 D/s practices into our relationship! I'm probably speaking too soon, I realize. But how long should I give this before I decide we aren't compatible sexually? And how do I bring this up without bugging him about it? Because I feel like I talk about it all the time.

edited for minor typo.