Do you need a course or a manual to use google analytics now?

I never used it for over a decade. Before it was pretty idiot proof. You could see all the reports and figure out what goes where and how things are done by spending time on it.

Now it seems like you're on a sandbox environment with hardly any data and you have to create your own data points for GA to produce reports for you.

Anyone know of a resource where I can get started with?