This is fascinating. I also have aphantasia and experienced psychosis with high dosages of those drugs, however the only lasting effect I received was a profound connection with all living things. I subsequently became vegetarian. Other lasting effects I have experienced from strong psychedelics are mostly social realizations—basically I have more/expanded empathy and imagination and am able to go far enough outside my own headspace to recognize how I differ from others. I envy people who claim that psychedelics have made them closer to cognitive normal; while they have made me happier in the sense that I have less internal conflict, they have never “fixed” my brain, only given me better coping mechanisms.