Which subject in school did you find impossible to master? Did math give you hives? Did English make you scream? Do tell!
I loved English and Creative Writing (can you tell?), but when it came to math I just wanted to run and hide. I started out with the old math when I was very young and then came the new math. It went downhill from there.
I could do Algebra 1, no problem and even enjoyed some of those problems, but when it came to Algebra 2 and Trigonometry I lost it. I stumbled through that class and barely got passing grades. I never took Geometry and I had no basis to go on any further in Math.