Becoming a Power BI Expert

Hello everyone,

 I don't know if this could be the right forum, but I am writing you because I need advices about how to progress in the BI world.

Right now I am working on the finance department of a Pharmaceutical Company and I have a Bs in Economics.

For the last 6 months I’ve been using Power BI and building some reports. I am excited about this tool and the company has allowed me to do some courses.

The problem is that I simply don’t know what to choose. I am able to create reports from .csv’s; create calculated columns; measures; good visuals; however my clearly lack of knowledge are data bases.

My intention is to do some proper course for a couple of months, and not just an intense 8 hours session of basic Power BI.

What do you recommend me to start a career in this field?

Thanks very much and cheers from Barcelona.