BTS Informatique de Gestion — present for code, absent for math
I went through a two-year BTS apprenticeship in IT management. I was present and engaged in every coding-related class — that was my element, and I learned a lot from it. Math classes were a different story: I rarely attended them. Not out of disrespect for the subject, but because none of my prior teachers had ever managed to give me the foundations I needed to follow along, and by the time I reached BTS the gap was too wide to bridge alone in parallel with everything else.
I made the conscious choice not to sit the final exam. I knew I wouldn't pass the math portion, and I preferred to keep building real things rather than chase a piece of paper I'd half-earned. That decision is why my CV says niveau BTS rather than BTS — and I've never regretted it. Twenty years of shipping production software has more than filled the gap.