How can learning new skills increase my earning potential?

If I was on the other side of the table, would I hire me for whatever I'm asking for? What is it that I can do? How many of the technologies out there do you actually know how to use? Because if you're somebody who just knows how to do a bit of programming, do a bit of this, do a bit of that, but maybe you don't have the real technical knowledge in the real world, take a course on either Azure, GCP or AWS, and you've increased your worth by 30% automatically. Just based off doing one of the basic courses. It's all of these cloud services and infrastructure, all of these things, if you understand how much that works, for me personally, you are already worth 10 times more than anyone else.