Yes I agree a tailored strategy which works for you is best and you need to try a few of those strategies out which takes time... and, your T needs to know the extent you're not remembering things.. they need to be on that same page so that together you're working on it...
I think though, don't put pressure on yourself to remember everything... atm, you're maybe in the stage of getting yourself to session, learning how to stay in the room physically for the duration which maybe causing the dissociation (learning how to be safe)... and the more you can do that and your both develop that therapeutic relationship, the more present you'll be and the more in time, you'll retain from session... it's ok to be at the stage you are now...a necessity step.. I've been there and I know how it feels, but if you work well with T, you can work through it...
Here are some strategies I can think of, some of which I use:
- Agree with T at the end of session the main points (a summary) of what's covered at the end of the session
- Get T to run through contents from the previous session to bring you up to speed before session starts... they'll need to be careful not to go into triggering material, as you may have forgotten since previous session (just a general overview)
- keep a member diary here to record down what you discussed and your reflections, this can really help! Or write it in a journal at home
- T may email you a summary of that's something they agree with... but I think if you make points immediately after session, and T has summarised at the end of session, you can often retain key points
- set an alarm on your phone once/ twice a week (or however may times you want) to read over the points you've made about sessions in your diary to keep reminding yourself of the work covered (repetition helps)
If you think using these strategies are too difficult to put in practice, e.g you're even forgetting about the strategies despite trying, you may need to bring that up in session with T to work out extra strategies.. if you're dealing with parts and losing time etc (e.g a dissociative disorder of sorts) you may need more specific in put...