Even if you don’t have time to dig into analytics and learn in detail about all the stuff, there is one simple thing you can do in order to get out more of it.
Click on customization -> Dashboards -> Create new -> import from gallery. Have a browser and import 1, then import another and another! Click around and see which dashboard are of interest for you… I would think there is more than one! My favorites are the performance one and SEO dashboard. However for ecommerce this is gold.