Anyone taken a professional stock market investing course?

Hello to All,

I wanted to reach out to the community to see whether any of you have taken a professional stock market investing course? Most of what I know has come from books and some experience, but I am not necessarily "deep" on the subject. Would it be worthwhile to do that? I have bought some Udemy courses that are so, so.

Are there any recommendations for courses (trading systems) that you have taken that have made a difference in your financial investing in the stock market? If...

Anyone taken a professional stock market investing course?

from Anyone taken a professional stock market investing course?