Shay, I'm glad you talked about what you feel the real issue is with your therapy. It helps to know what you feel it is so we can work with it.
It is a problem that Linda jumps around and doesn't stay with one thing. And if that is your impression, it may be worth saying something about to her (though you may have already). It's something to think about. But in the meanwhile, you still need your issues addressed in a way that you feel you are accomplishing something.
One question I have- are your therapy sessions started off with an agenda from you or from Linda? When I do therapy, it's the person I am working with who gets things started. Because to me, that is what is on their mind. It could be a whole different topic than the week before, but if that is what is bothering them, that is what we deal with. Now I may bring up other things in relation to what they are talking about, but for the most part, therapy is driven by them with my input as we go along.
By telling you that, I am hoping to help you see how other therapists might work . Cognative behavior would be different than what I use. My therapy is feeling based. And it sounds like that is what you need right now. Linda may feel comfortable with switching around so you can get both. I'm hoping that is what she is doing with going back over your story.
It may help you to tell Linda that you need her to stick with one topic for a time, until you feel ready to move on. Bringing that up to her may help. If she feels she can't stick with one topic, then that is an issue she has to cope with on her own. That is her transferring her feelings and issues into therapy. It happens and it can make problems, but as long as it's addressed then therapy can continue.
It is interesting what you said about the baby. Why not talk to Linda about it? It may be that you feel ready to have a child and this is a sign. The adoption process can take a while, so if this girl is willing, you'd have to get started now. But the feelings you are having about this are important. You should talk about them more.