what symptoms to track?

Hi everyone! we are a part of a suspected OSDD system (obvi) (but also leaning more on the side of amnesia and less defined alters) and we were wondering, to anyone out there who has had to go through talking to a professional or is prepping to, what should we track? I want to track symptoms and experiences before I am able to be able to see a therapist in however many years that will take so it can help me better explain myself when I go in, but how should I go about that? What things do y'all suggest we should keep an eye on/track? I know this question might be silly but it'd be great to have some communtiy support/advice on this!:)