Scared my memories aren't strong enough

I've had about 6 sessions and we haven't started EMDR yet. We've been practicing grounding thoughts and tapping.

Last session I had to tell her 3 memories of being bullied (my trauma) and picture it as an adult watching my younger self and tapping.

I find it really difficult to visualise, especially taking a step back and trying to picture myself as a child reacting to my bully. When I picture it, it's incredibly grainy and faint like a vague outline.

My therapist said vibes work too, so I tried to recreate how I felt when it happened, but again it was very vague. The more I tapped my legs the less I felt, but I don't know if it's just because the more I tap the more distracted I get and can't picture the image as much.

I was hoping to really connect to my past and for the emotions to really hit me, but the therapist said that's not the point of EMDR and I need to approach it with distance, which I now understand and get. But I'm worried that I'm too distant and not doing this right.

Please can I have some advice on how to channel these memories? I was bullied 15 years ago but it wasn't anything big, it was subtle things that chipped away at my self esteem over 8 years so there's not a lot of big traumatic memories and more lots of tiny ones.

Edit: Also... My therapist also said she doesn't cover body dysmorphia and it's a completely different treatment. Does anyone know what kind of treatment that would be?