When you log in to the MetaCompliance portal, the displayed Home screen outlines your 'Complete' and 'Not Complete' content:
To access training that you need to complete, simply navigate directly into the 'Not Complete' section of each module.
Also, via the left-hand pane of the portal, you have the option to look over your content within your MyCompliance Library. Within this area, you can filter by Mandatory and Optional content, and you will also find several other filtering options to help you navigate your content.