I noticed I do the same thing in T. I would like to say things as they are but I have such a hard time doing that. I have started to bring issues that have really been bothering me up in the form of writing, that way I don't forget what I am going to say. Sometimes I have her read it, if its to hard for me and other times I read it.
I recently did that in reference to something she said once that really bothered me, she was very apologetic. The writing it out really helps because there was no way I would have gotten those words out of me:) Hopefully some day soon I can do it bluntly.
I recently told my T that I feel like I am all over the place in there lol, meaning I talk about any and everything, and not always what I need to . She said in the beginning the is good and needed to help you feel the T out and learn to trust him/her. However, I have now been going for six months and we set up some goals together, ones that give me a more direct aim in T, with deadlines. The dealines are only there for direction, not written in stone. She informed me of that this week because I was so freaked out that I wouldn't be able to accomplish them on time, and I let her know that.
Hopefully this helps some, don't be too hard on yourself, its always rough in the beginning, especially if your totally new to it like I was.