I used to be good at maths. No, let me rephrase, I used to like maths (Yes, in french math is plural).

Then came my last high-school year, and I got the worst teachers ever. I started neglecting math in favor of more enjoyable subjects like Chemistry and Physics. And my grades started dropping.

After high school I got into software engineering, and I aced most courses, but math.

And until today, I say that those teachers may have cost me a lot. As I screwed-up many interviews when math questions came up. (I'm talking signal, and Fourier series, etc, ..)

I may be in a totally different career now if only I had teachers that cared a little more.