Personally I have dyscalculia and to this day I need to add on my fingers. Still, I ended up with degrees in physics and computer engineering. I don't think tho

Personally I have dyscalculia and to this day I need to add on my fingers. Still, I ended up with degrees in physics and computer engineering. I don't think those things you mention are useless, but they never worked for me so I don't view them as invaluable.