Looking to become a Business Analyst from marketing

I'm looking to change career from working in marketing to become a Business Analyst and wanted to get some useful advice and tips on what I need to know and areas to focus on to make the change as smooth as possible.

I have a Masters in International Marketing Management alongside my Batchelors in Business and Information Technology, but have become somewhat disillusioned with the way the Marketing industry is going, the lack of balance between effort and reward and the lack of job security.

I have done some data analysis in previous roles and have worked at a SaaS company for 1½ years, also have a good understanding of SQL, a working knowledge of Excel and have been doing a Tableau course to develop my data analysis and storytelling skills with data. I've also been doing a BA Fundamentals course on Udemy to get a good base for the BA role, but would really appreciate advice as to what other steps I can take to make it in the industry.

Many thanks in advance.