Advice for somebody new to the BDSM community

So,

In my relationship I am the quiet and soft one, I naturally take on a nurturing role and almost act like an 50s housewife (all cooking/cleaning/domestic duties) and I have no issues with this whatsoever. It’s what I’m comfortable with and it’s a healthy 50/50 give take relationship.

In the bedroom in the past he has been the dominant one, but the last few months or so we have explored anal play. For both of us. I have no complaints I LOVE trying new things and letting him do anything he wants to me sexually.

More recently I feel theirs a change in sexual dynamics, he has come to enjoy his ass being played with more than I enjoy mine. So I finger him and rub his prostate while giving head and sometimes after showering give rimjobs. In these situations I’m in control of his body and what’s happening and he sounds and looks so vulnerable.

Being sometimes dominant is a turn on for me but I’m not a very sexually assertive person. I’m so used to my entire sexual history being completely submissive so this feels a little odd to me. We’re exploring new things and are new to the BDSM community.

Any ideas or advice on how to be more dominant?

Or things to try out?