TBH, I was always a chemist at heart, so maths was never my strong point. Molecular astrophysics was just an interesting place to apply it. I'm good with how things behave and interact, but the maths was all done by computers. For molecules, it's way too complex to do yourself, anyway.

Well yes that's also how I came to love math (models and probability). I haven't done arithmetic in decades. But in school it was all how fast can you do your times tables and your grade depended on that