IMO do top down ML stuff and learn the math as-needed. This is recommended by Rachel Thomas and Jeremey Howard of fast.ai as well. There are a lot of great reso

IMO do top down ML stuff and learn the math as-needed. This is recommended by Rachel Thomas and Jeremey Howard of fast.ai as well. There are a lot of great resources for the specific kinds of math you'd need for ML. I personally am self-proclaimed terrible at math ( also had very been schooling ) and was able to ML with not much extra work after their courses. Good luck!