I tried emdr but something wasn’t working

I would be told to look at this dot on the screen side to side but also to think as she’s doing it, so she would ask a question then she stops talking and tells me to look at dot and expects something to pop in my head and I just watch the dot but my mind is completely blank idk if it’s dissociation or what I want emdr to work and my therapist thought it was adhd I got tested it was like 1000$ and I got told my PTSD is why I have every issue I got, so I’m sitting here like what the hell do I even do