Certification and career advice

Hi, I just finished this course and first of all, thanks a lot for the free one month access as it is great for small time employees like me who's in customer service. I have a master's in physics and I feel like I can pursue data scientist or BI analyst yet I'm in two minds what to do, I have a very good learning aptitude and a basic knowledge of python programming and would like to get into a career where my primary goal is to earn more as these two positions are something that I can enjoy too!
What courses should one do if they plan to become data scientist or BI Analyst?

Thanks