I'm attempting to master machine learning as of this year, 2018. I enrolled in Andrew NG's course on Coursera for the first time. Despite the positive reviews, I found the course to be boring and was unable to learn as much as I had hoped. I learn the fundamentals, but I'm not sure how to put them to use in the actual world.
Then I bought the "A-Z in data science" course from Udemy. The author is attempting to educate in both Python and R throughout the lengthy course.
I'm still not happy with the course.