This might sound either obvious or naive but if you are not a CS major, I would really emphasize reading CS textbooks such as CLRS, Programming Pearls, Dragonbo

This might sound either obvious or naive but if you are not a CS major, I would really emphasize reading CS textbooks such as CLRS, Programming Pearls, Dragonbook and most importantly textbooks on statistics m probability, linear algebra. There is a pyramid of skills for developers. People who haven’t studied throughly above stuff usually ends up at bottom (aka “enterprise” or “web” or “database” developers). They spend their lives in trivialities of patterns and plumbing and only very rarely doing something interesting such as distributed computing, game programming, systems programming, ML/AI.