I'm thinking you might as well ask, since you're unhappy about the frequency of visits and you're unhappy about asking/talking about wanting to go every week.
My guess is the answer will be yes (I can't think of why a T would say no).

One thing I have learned in therapy is that it is less stressful to ask and risk than to agonize about it and feel stuck and helpless. Not that I can do it each time, I'm still practicing . And sometimes it doesn't even occur to me to just talk about something. When I finally do, there is relief even if the answer isn't what I wanted.

One way I have found to bring up something I'm anxious and cautious about is to state that I have something to say/ask/talk about that I'm hesitant to bring up or afraid to bring up, etc. That opens the door and she encourages me, literally giving me courage to continue. Sometimes we first talk about the hesitancy or fear or whatever, and what that's about and what that feels like. It's interesting and connecting.

Good luck, go for what you want