I would start a therapy discussion journal, kind of like a dream journal and when you think of something you want to discuss, write the date, time, what's going on and what you want to discuss, maybe do a page a week -- each evening write 1 issue/difficulty/incident from that day and while you're waiting for your session whenever it is, read the week's 7 and narrow it down to 3 and then start with one of those. I would pick; doesn't matter what your T wants to discuss, it's my therapy and about what is important to me; if I cannot pick what is most important to me at any given moment, I would discuss that difficulty?