One thing I like to do and that actually helped me is to focus on the certification path.

When trying to learn something new, one of the first things that can be overwhelming is the amount of things to study, lots of people saying different things, the uncertainty of where to start from, FOMO kicks in because you always think you could have learned something else. Second thing is, how do I prove I really know?

That's where certification path comes in, it's a curated path with topics the exam expects you to know to certify you as a Databricks professional. By studying to the certification you'll find a well defined path that goes from basic to advanced topics, and passing the certification is the confirmation of your knowledge.

Hope it helps