I know a bit more about Git and have started working my way through Hugo In Action.
More importantly, I now have a plan for the remaining 19 days.
Before the week ends, I am going to deploy my own Hugo site. It will be a work in progress, but it will be live. The home page will clearly state that the site is under construction and may go through multiple iterations before I officially launch it by the end of the year.
Learning can continue after launch, and the pressure of maintaining a live site might just be the motivation I need to learn faster.