Just cheat off your neighbor and you'll make at least 17%. It's makes sense that calculus is so hard, they name a learning disability for it.

Maybe knitting, or at least knitting this pattern, is not really the best hobby for you. Sometimes we use hobbies or crafts to build up the skills we want. More often we use hobbies or crafts that make us feel good about what we can do. There is a fine line between giving up too soon and continuing on a path that is not best for you. You need to decide if you are likely to overcome this problem or if you need a different hobby. My son was diagnosed as having a “learning disability in math” as they called it then. But his verbal skills were good. He ultimately settled on a career in which his math problems were not a limitation and matched his interests (security in his case). I am an engineer, on the other hand and my visual and basic math skills are probably better than my verbal skills. Neither is inherently “better” than the other. The smart path is to improve on the skills you have and find a career that works with your skills and interests.

I have dyscalculia, I tried to tell my math teacher when I was high school and he thought I was making it up. He didn’t believe it was an actual thing

So this one's mine. I'm actually really great at knitting, I've taught it to others, and my math wasn't actually wrong--turns out that I was using the wrong stitch for the method I was counting with (knit stitch, it turns out, doesn't gain height at the same rate other stitches do). It's still pretty funny\stupid. And now I know not to use knit stitch for something I want to have the same number of rows as number of cast-on stitches *and* be a square...