Digital Marketer looking to change to Business Analyst. Anyone here been through the same?

I have been working in Digtial Marketing (specifically Paid Search, Social and Analytics reporting) since 2018. The area of the work i love the most is stategising with clients and interpreting data. This is my impression of much of the work a business analyst would do (correct me if I'm wrong).

The part of my current job i enjoy least is the management of social media.

I currently work full time with an agency (PPC) and also have 5 freelance clients with whom I perform consultancy work for.

My only qualification is unrelated ( Masters in Law)

WHat I want to know is how to transition from where I am now to become a business analyst?