Hi acoombs2015,
Asking how to create custom report for data is very very broad, you need to be more specific like what sort of data you are aiming to get, what you're trying to achieve, etc... However, as you have mentioned having found the Audit Policies and Best Practices for LEM then you should understand what is being put out from LEM. Now, to implement "SQL best logging practices" to that base understanding you have will require knowledge of SQL.
As you aren't a DBA and from the little detail you've provided, I suspect you are tinkering and know small bits of SQL here and there. Therefore, I would recommend looking into general SQL best practices such as SQL Best Practices for Data Analysts (SQL Tutorial for Beginners: ep4) and general SQL Tutorials like this one, which will run you through how to write them and understanding what and how you've written it so you can learn and develop your SQL skills. This way you can proceed to move into the details that you are currently aiming to achieve here.
-Midnight