First, tell this to your therapist. Let her know what you want and give her a chance to be the therapist you want.

About specific things you want to talk about, it will be up to you to bring them up. You can begin by saying "Today I'd like to talk about...." and you can do for the next visit by saying "Next time I'd like to talk about..."

You can also say "I like it when you..." and "I don't like it when you..."

You're right, this is your therapy and you want certain things. Since you and your therapist are still getting to know one another (an ongoing thing), this will help her understand what you want because she can't know unless you tell her.

I recently told my therapist of 7 years that I sometimes think she is 'too' nice. Now I love her niceness, her kindness, and I have benefitted greatly from it, but it can be something that gets in the way, too. If the mood in the room is all sunny and happy, I feel reluctant to bring something up that isn't, that doesn't 'fit' the mood in the room. It was not easy to tell her this, but it was a good session because I did. Ironically, she had been having the same thought about herself. So that was interesting to learn, too.