While looking for a study guide for The Confessions of St Augustine I ran across this blog post which offers a reading guide for the season of Advent. This is a great idea and it is not to late to join in. Take a look!
Schedule for reading the Confessions of Saint Augustine during Advent | Esgetology
I also found a list of study questions provided by Robert D. Wallin (here). It's a start. If you know of any other study guide, please let me know. Thanks.