You shouldn't be worried about wasting her time... she doesn't get paid less if you talk about tivial things... to her a session is a session. If you feel you want to discuss more important things, my suggestion is to write out your post, just as it is and when you walk into therapy hand her the note. It is very heartfelt and she would not feel hurt by it, I think she would feel better for knowing that you want to try and that you want to give all in therapy... Therapists have a lot of training, but they are not mind readers, sometimes you have to tell them what you need from them, ie. leading the discussion. She won't feel offended, and you will have better use of your sessions.