How do you know you have aphantasia? It's not a lack of imagination, it's an inability to close your eyes and visualize. You can still think imaginatively, but you can't picture it. But to know you have it you'd have had to have gotten it diagnosed, and for that to happen you'd have had to see a health care professional of some kind to do that, and that person would have spoken to you about it and would still be helping you learn how to cope with it. If you are as young as you sound your Mom would have had to have been there with you, and so would know from the medical professional you have it. So, did you self-diagnose? You seem able to imagine that your Mom isn't interested. You are able to imagine that everyone would be better off if you weren't there. You don't know these things so you are able to conceptualize theoretical posssibilities, which is an act of imagination. So tell us if you have been professionally diagnosed or if you Googled something and this came up.