I feel that. I’ve found it very difficult to try to go to therapy to talk about my own issues because I just can’t seem to remember instances of trauma, either. I haven’t really found a good way to overcome this barrier, and it’s why I gave up trying cognitive behavoural therapy.
The one thing from CBT that I liked and I’m trying to get back into are thought diaries. There’s an app on my phone that I use that I can write down my thoughts and the situation they came from, and I can challenge the negative thoughts that come with it. At the time of finding the app, I didn’t exactly know why I preferred writing it down rather than doing it mentally, but then found out I have no internal voice. So it feels downright impossible to stay on task in my head and challenge negative thoughts when I can’t even hear myself think.
I can also use it as a written down memory to talk about certain things to the therapist. Maybe it’s not as helpful now because you can’t remember trauma from your past, but it might be a good idea to start logging instances now that might relate to your past trauma to try to help you heal from them. i.e. you may not remember the trauma from your past, but can log and remember how it affects your life now. If that makes sense?