Can relate. Did this make me better at math, or learning in general? No. Did it make me have a panic attack whenever someone raises their voice at me? Yes.
My dad had the patience of a saint helping me with my maths homework, my teacher on the other hand was horrid, picked holes in the methods my dad taught me (even though I understood his and not hers) and made me cry. She's one of the reasons I wanted to be a teacher because I didn't want any children to feel the way she made me feel.
In an earlier comment, @karlboll answered a guest's query as to what 3x7 was, with a terse, "42". 42 happens to be the well-known answer to the question posed in The Hitchhiker's Guide, as to what was The Meaning of Life, the Universe, and Everything, and since he jokingly claimed 3x7 was 42, I brought the Hitchhikers reference into the comments as a follow up.
I stumbled on dyscalculia by accident, I think. But a lifetime of face blindness, counting on my fingers, inability to read maps, inability to do math in my head, and utter failure at spatial reasoning all fits >.<
How did you discover that you have it?