This is my first post. I'm glad I've found this site. I was wondering how often most people see their therapist?

I'm sure it varies a lot, but it is something I'm having a hard time with. I was previously seeing this therapist for marriage counceling. I think because there were 2 of us she was more directive and always sort of suggested when we should make our next appointment. Now I am seeing her alone for depression/anxiety. Sometimes at the end of my session she'll ask me if I want to come again to which I always say yes. But, then she'll ask when and I freeze up. I really want to say the following week, but that seems to dependent so I said "in two weeks" and regretted it. Do other people choose how often to see their therapist or do their therapists tell them how often to come?