I`m a fan of Nikola Tesla. And when I read his diaries. I was surprised that Tesla did not have exceptional visualization abilities as a child.
He started visualization training in age of 16, because it helped him get rid of the flashbacks that haunted him after his brother’s death.
He just looked at objects and then tried to recreate them with his eyes closed.
When the items run out. He started doing mental journeys.
As Tesla recalled: “At first everything was very blurry. It seemed to be pulled together in the distance when I tried to switch attention to him. But over time I was able to focus on the details.”
It took him 3 years of training to become who we know him.
I just do the same exercises for 3 hours a day. 2 hours for the development of visual memory and 1 for mental journey. Or vice versa.
Of course, I’m 19 and my brain is not so neuroplastic. But the Russian mentalist Yuri Gorny started training at my age. He also reported. That after prolonged exercises on visual memory in a mix with mnemonics (he wanted to surpass Solomon Shereshevsky), he also learned to retain vivid images for a long time.
Therefore, in addition to Tesla’s exercises. I train words, numbers and cards in two rounds. First, I try to get the most vivid scene at each location.
And on the second run I concentrate on speed.
Honestly, I don’t know how to help you. The fact is that there is a slightly different mechanism behind the ability to remember and represent faces. People with prosopragnosia generally have a good visual memory. Daniel Tammet has a wonderful imagination. like many people with Asperger’s. But in the book “Born on a Blue Day” he wrote that he doesn`t remember any classmates faces.