<human>: Can you give me the gist of the text in a nutshell?

My goal is to learn a useful skill for working in health informatics.

So- I've downloaded MySQL, and am looking at the lessons on W3schools.com, but...

It's telling me the commands to do all sorts of things, but, I don't understand the basic interface.  I don't know where I should be typing in these commands- the Command Line Client?  Somewhere in the MySQL Workbench?

As you can tell, I'm really newbish.  I need something that will run me through exactly, step by step, starting from the Windows desktop, like I was 5 years old, how to get the simplest tasks done in MySQL.

Any suggestions on a basic tutorial like this?
Any other CS basic "primers" I can find?
<bot>: Downloaded MySQL. Need a tutorial that could show a 5 year old how to do the basics in MySQL, starting from the Windows desktop.  Also need any basic CS primer course you might know about.  Thanks.