seeking advice on switching to an AI or machine learning field

I have a liberal arts BA and not a math/sciences/computer background. I’ve been working for over10 years as something like an accountant.

I took lots of courses on Coursera and got the certificates related to Python, math for ML (matrix algebra, calculus, probability/statistics), and a bunch of machine learning and AI classes.

QUESTIONS:

How can I switch to an AI career?

Do I need a master’s in math or AI?

How do I get hands on experience - maybe Github, freelance jobs, unpaid internships or volunteer work?

What entry level jobs are there in AI/ML that I should apply to?

thank you